commercial coffee roaster venting

For our coffee roaster venting systems we have experience with nearly all roasting equipment manufactures, understand the fundamentals of airflow and exhaust configuration, and can talk coffee. Whether you're replacing an old roaster or setting up a new space entirely, it's something that needs to be installed properly. (Cat. Meanwhile, Kaleido Sniper M2 uses independent cooling system. Add to Cart Add to Wish List VEVOR CNC Router . We're proud to be apart of the Diedrich family! Quick-Fit is a modular system available in diameters 3-24". The MCR Venting Kit for our 2kg Digital Coffee Roaster offers an convient way to increase your duct size from 5" to 6" while also offering a removeable clean-out section using our favorite clamp-together, single-walled venting system. SOLD JUN 14, 2022. Profile Coffee Roaster. Your fluid is the exhaust gas; you just need to route it properly.. Were selling quality, performance, service, and value. $605,000 Last Sold Price. And setting up a good ventilation system is tons of fun, but nobody seems to know how to do it. Let the roaster cool down after each roast. All kits end 30 to 40 above the chaff collector, depending on the size of your roaster (see the layout drawings for dimensions). A workaround is attaching an aluminium exhaust vent and feeding it out of a window. Narrow air passage can promote chaff dust and residue build-up and can easily block air flow. Low-emission and run entirely on electricity, they stand in stark contrast to the traditional natural-gas-powered machines that produce as much as 90% more carbon per cycle. . 110V How to make roasting more even? Ill give you some search terms below. All carefully designed, engineered and hand built in Oklahoma City, OK USA. When choosing a venting manufacturer, you may want to choose one that has that information readily available, or it could delay your project. Diedrich Roasters bring versatility and precision for perfectly repeatable results for cacao and other natural products. Clean the chaff from the drum's roasting chamber once a month. When ducting is traveling through a building envelope, or near combustibles, single wall ducting may need modifications (shielding or double wall segments). Take time to find where residue builds up within YOUR machine so you can stay proactive in keeping it clean! Ft. 1903 Sulgrave Ave, Baltimore, MD 21209. While the data might say a roast should be perfect, your coffee roasting senses may say otherwise. Whether youre replacing an old roaster or setting up a new space entirely, its something that needs to be installed properly. Perfect Daily Grind Ltd, You'll discover that making sure you stay in business is as much a priority for us as selling you a machine. By accepting all cookies, you agree to our use of cookies to deliver and maintain our services and site, improve the quality of Reddit, personalize Reddit content and advertising, and measure the effectiveness of advertising. Sheetrock brand all-purpose joint compound combines single-package convenience with good taping Commercial Coffee Roasters for Lease | Sonofresco offers a new 24 month Lease program to help start your coffee business. No matter where you currently find yourself in your commercial coffee roasting venture, the San Franciscan Roaster Company has the right machine for you. Round Wall Vent Master Flow 6 in. While choosing the right materials and supplier for your venting is important, make sure you plan ahead. When selecting a venting class/type, there are three major issues specific to roaster exhaust: heat, pressure, and residue. It is built by hand with American-made parts in our factory in Carson City, Nevada. John P. #5 : by John P September 7th, 2011, 1:22 pm. PRODUCT INFORMATION & EQUIPMENT FOUND IN (Partial List): Electric vs gas, infrared vs direct flame, data logging, automation, drum material and construction. Weve designed our machines for maintenance to be as efficient and palpable as possible. Our office team is available Mon-Fri, 9am-5pm (CT) and messages are monitored nearly around the clock. The exhaust vent is sized down and WILL connect and properly seal on a piece of exhaust pipe fitting. Control every aspect of your profile to fully develop the flavor of every bean. When the beans are loaded into loaders and drums, dust can bloom. Special Gas Vent is a common name for positive pressure venting that typically has a heat rating of about 550 and a clearance to combustibles of 1-3. In most cases, the best machines can cost more than $2,000, but you don't have to buy one. While choosing the right materials and supplier for your venting is important, make sure you plan ahead. Email: info@us-duct.com. We are proud to announce our partnership with Cropster! Whether youre just getting started or ready to expand, our friendly and highly-experienced team will match you with the perfect roasting solution to achieve optimal efficiency and profitability. Finally, if youre starting a particularly complicated project, consider speaking to an outside specialist. It can roast 15 pounds of beans in an hour. Sign up for our free newsletter! If you have a very high roof (mine is 20 feet) that you don't want to climb, then I highly recommend getting a zero or no loss stack head. Download Rolled Lip Clamp Together Ducting Specifications. So as long as we can remove sections for cleaning and we use double walled when going through or near combustables Is there anything we need to watch out for or consider? Whatever the heat source, the primary operation of the burners or elements is to heat air, not the beans directly. Unlike other roasters, which are built with lower-quality steel imported from Asia, San Franciscan Roasters are built from hand-fabricated, 100% schedule 40 domestic steel. They had to buy a US $3,000 fan because they should have had fewer angles [in the venting run] or pipes with a wider diameter.. At the San Franciscan Roaster Company, we like to say, dont fear the craft; embrace it! We think technology can save us from mistakes. This is simple technology, but generally less than convenient to set up scrolling through hundreds of steps on a 4 or 5 button control on a 5 square inch screen. US Roaster Corp has proudly served the roasting industry for more than 40 years. Farningham Road, View on Amazon. Features Drum & Chassis Gages Power & Technology Fuel ANSI Certification Installation & Maintenance Sizes Drum & Chassis 6. Single-wall pipe is often easier to disassemble and handle while cleaning, which may increase the likelihood that regular cleanings occur thus increasing the overall safety of your roastery. Sign up for our newsletter! Clearance to combustibles is the clear distance that must be maintained between a hot surface (venting, chaff collector, roaster body) and all combustible materials (drywall, wood studs, plywood, insulation, trims, composites, etc.). Batch size for the CR-140 is approximately 140 Kg/308 lbs. of retail-ready coffee in an 8-hour period. Centrally located in Oklahoma City, you will find a staff of more than 50 highly experienced employees who work tirelessly to improve the design, roasting and fabrication process.. With many decades of building and rebuilding many types of roasters, we have found from the ground up what it takes to build the best equipment and the most durable machines for our customers. While fires generally start in the roaster itself rather than in the ventilation system, blockages will make a fire more difficult to manage in the event that it does break out. When you find one, read the specifications carefully and verify these four things: 1) positive pressure 2) double-wall 3) has a heat rating of 500 or higher, and 4) note the clearance to combustibles. If you're a novice or interested in expanding your knowledge of the system we've got your back. As such, Jeremias supply exhaust systems that are blast tested at temperatures of well above 1,000C to make sure they are ready for use. Due to degradation with prolonged heat exposure, these seals and o-rings may require periodic replacement. Start building your roaster order and get a shipping quote to you have your equipment delivered to your location. In addition to full batch capacity, our roasters are also designed to roast half batches. Leave yourself enough space if youre hoping to expand and roast more coffee. The air is provided by the combustion fan. Its also important to note that you will need easy access to the ventilation to regularly clean and maintain it, much like the roaster itself. Prospective buyers are faced with a myriad of choices between a variety of domestic and international manufacturers as well as several different competing technologies. Over the years we have completed a multitude of coffee roaster projects for a variety of customers and roasting equipment manufactures. III venting is not required but has very similar specs. Clean the main filter once a week or as necessary. Drum roasters are systems where materials selection and burner configuration and air paths all intersect to produce an intended result. For more information, please see our Our office team is available Mon-Fri, 9am-5pm (CT) and messages are monitored nearly around the clock. It's relatively small and can fit into the kitchen. We have more years of experience than any US Based company: small enough to care, and large enough to bring you the best build and technology. A roastery is a unique space. was love-lying taken care of and utilized few times weekly. Vent Hood - Coffee Roaster for Sale | Sonofresco Roaster Vent Hood $ 765.00 - $ 810.00 When any Sonofresco Roaster is used indoors it must be vented outdoors to remove heat, exhaust gasses, and the minimal amount of smoke created during roasting. Once cooled completely, the roasted coffee beans are finally packaged for sale. By making use of excellent data-logging software such as Cropster and Artisan, todays generation of coffee roasters is able to embrace creativity and experimentation. Coffee roasting exhaust fan / smoke extractor / ventilation. Start building your roaster order and get a shipping quote to you have your equipment delivered to your location. When designing roastery venting systems in spaces/buildings containing combustible materials, we suggest employing a hybrid system that uses both single- and double-walled venting. In these vent lines, hot air rises from the source and as it rises, it creates a vacuum behind it, pulling up more air from inside the vent below, but also pulling air into the vent through seams in the vent parts and connections. From the customer to the product, Diedrich knows specialty coffee Learn More. A commercial coffee roaster will usually take anywhere from 9 minutes to 15 minutes depending on the size of the coffee roaster and the size of the batch. Electric heating elements are often heavy and slow to heat and cool making delicate on the fly profile adjustments awkward. We specify the correct venting material for your project, and know the UL Listings required for each application. Subscribe and we'll keep you up to date on the latest news. -. Nearby homes similar to 2804 Ruscombe Ln have recently sold between $605K to $605K at an average of $235 per square foot. 1. ITS NOT JUST ABOUT MACHINES. casa d'angelo restaurant January 27, 2022. crouse primary care camillus. Equipping Your Coffee Roastery: Where To Start, Understanding Roaster Drum Speed & Its Effect on Your Coffee. If you want specific recommendations for manufacturer and model, call us. Venting is commonly available in both single-wall and double-wall pipe. While infrared burners are more efficient, they operate in only a narrow band of output. Roasting onsite with Bellwether saves you significant costs over wholesale, eliminates problems with freshness and consistency, and produces the lowest carbon coffee on the market. document.getElementById( "ak_js_2" ).setAttribute( "value", ( new Date() ).getTime() ); Copyright 2023 Mill City Roasters Proudly serving the global coffee community from Minneapolis, Minnesota, USA. For our coffee roaster venting systems we have experience with nearly all roasting equipment manufactures, understand the fundamentals of airflow and exhaust configuration, and can talk coffee. We specify the correct venting material for your project, and know the UL Listings required for each application. Check it out! 3 Baths. Want to receive the latest coffee news and educational resources? We guarantee it! Heating Method. Your roaster is built to fulfill your specific roasting requirements and specifications and to fit seamlessly into your workflow. All it emits is warm/hot air around 120 F from the top. Its more prevalent on those terminations that are made through exterior walls. Whether you run a commercial operation, retail shop, or home-based coffee business, Sonofresco roasters offer the tools to create exclusive flavor profiles in batches as small as 1/4 lb. We also suggest further upgrading your heat rating if you are roasting in a space that does not have commercial grade fire planning such as fire-rated walls, doors, and a fire suppression system. "Our group of dedicated professionals work with small startup companies to large industry leading corporations to provide them with roasters to complete their production plant," said Dan Jolliff, owner of US Roaster Corp. Not only is commercial coffee roaster maintenance important, but its also crucial for the overall usefulness and functionality of the machine. Venting into a safe outdoor space is required. This clamp together system provides a fast install time (50% faster than flange connected ducting) and ease of adjustment. Our systems are entirely gasket-free, Larry tells me. Other common components in positive pressure venting systems include seals and o-rings that are typically offered in nitrile or silicone. Note that the digital PID temperature control on most commercial coffee roasters is a fail safe only and generally set at only a maximum on/off temperature. Mill City offers a venting kit but it is quite expensive and we are a fairly tight budget operation. We've done the research and have decided on a 3kg from Mill City, and I have several years roasting experience at a medium sized roastery and will be serving as the coffee roaster. Reddit and its partners use cookies and similar technologies to provide you with a better experience. Find the perfect small batch, single drum commercial coffee . Layout drawings are available for each model to ensure the kit will work in your space. Firstly, poorly designed ventilation systems can lead to reduced airflow or blockages, which can affect the quality of your roast and become a fire hazard. Commercial coffee roasters first drop raw coffee beans into loaders, which feed into a rotating drum. Call the San Franciscan Roaster Company at 775-996-2280 today! Similar to electric heat and although capable of producing excellent results, infrared limits control. Also, the implementation of GWB in preventing fire spread is largely due to the high moisture content of the gypsum core. Reliability is crucial when it comes to commercial coffee roasters. Therefore we make sure you get the most environmentally friendly, energy efficient and safe coffee roaster available on the market. Larry Rohskopf is the CEO of Jeremias, a specialist exhaust systems supplier. While other technologies can produce excellent results, most people opt for the control and flexibility of a drum. The primary safety concern in choosing one over the other is how hot the outside of the vent lines become during roasting. Thats all it is. Size is a big factor when it comes to choosing the right commercial coffee roaster. Contact the San Franciscan Roaster Company Today! Commercial Coffee Bean Roaster 110V 1200W Electric Coffee Bean Roasting Machine for Coffee Bean, Nut, Peanut, Cashew, Household Coffee Bean Baker Roaster Adjustable Temperature from 100c to 240c View on Amazon SCORE - AI Score AI Score is a ranking system developed by our team of experts. Larry tells me that Jeremias manufactures exhaust systems that can withstand temperatures well above what youd expect from roasting coffee. Up to 1078 lbs / hr. The Ghibli R30 Commercial Coffee Roasteris an advanced roasting machine that allows perfect control over the roasting process, in order to meet the desired results and cup profiles. Double-wall pipe consists of two walls: an inner lining and out casing with an air space between which prevents much of the heat inside the pipe from passing through to the outside surface. Even though it might have been specifically designed to do that, any equipment manufacturer, and certainly any venting manufacturer, will absolutely hate doing that.. At this point we suggest transitioning the line to double-wall venting to travel next to, or penetrate through, walls/ceilings/structure to reach termination outdoors. 6.1 Winner - KALDI Best Personal Coffee Roaster; 6.2 KALDI Mini Roaster; 6.3 Behmor 1600 Plus; 6.4 Fresh Roast SR 700; 7 Top 4 Best Coffee Roaster Machines for Small Business; 8 Best Coffee Roaster Machine Commercial Type - In More . To learn more about roaster ventilation, I spoke to Ryan Karatimus, President at Usonian Systems. Simply put and generally speaking, drum roasters can do what the others can do and drum roasters can do what the others cant. Sometimes you can actually see [the pipes], in the lobbies of coffee shops, Larry says. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Copyright 2023 Mill City Roasters Proudly serving the global coffee community from Minneapolis, Minnesota, USA. Commercial Roasters CR-140. We do not recommend using flex duct. Heat and steam rise from the drum and beans towards the colder space and exchange heat, Safety device, a live waterline connected to the drum in case of in-drum fire, Energy efficient, low electricity consumption, A ceramic coated chamber surrounding the drum ensures thermal stability and efficiency, Flame is not in direct contact with the drum to ensure even and mild conduction roasting, Temperature probes gathering thermal data from the beans, exhaust & drum space, Electronic drum venting control, setting convective heat percentage while roasting, Electronic drum speed control, setting conductive heat percentage while roasting, Drum air-inlet screens configured at vortex geometry to allow very efficient high-velocity air, Fully Modulated Pre-Mix Turbo Gas Burner Technology, Smart configuration & multi metal composite to conduct heat efficiently & safely onto your precious beans. However, because fluid bed roasters only use air to heat the coffee . Frequently Asked Questions about Venting a Mill City Roaster, For roasters that are 3kg and smaller, the heat rating required in your stack is a minimum of 500F. Roasters that are accessible to the public may want to keep non-trained persons from being able to come into contact with single-wall venting (along with a host of other things that are dangerous with industrial equipment). Since the parts are removable, cleaning becomes less of a hassle. Our staff of 50 with 6 engineers, and two draftsmen, can assist all your needs and provide you with a complete solution on plant layout and design for a complete turn key solution to fit your needs. Put more than 400g of beans at a time, less than this amount of beans will lead to unevenness. Handmade, heavy duty and at the same time very unique and specialty. These temperatures must be accommodated within the heat ratings of the venting you choose. Check your manufacturers specifications. Subscribe and we'll keep you up to date on the latest news. Specialty-grade quality and efficient roaster design offers the ability to precisely fine-tune unique roast profiles your customers will love. Conversely, the outside surface of single-wall pipe can rise to nearly the temperature of the exhaust air it carries. This venting components in the MCR Coffee Roaster Venting Kits are single-walled, Positive Pressure ducting system with quick release connections. He tells me more about one of Royals major projects, The Crown, an open-source coffee education centre based in Oakland, California. Depending on your venting layout, you may need a structural connection to support the venting where it meets the inlets/outlets. Coffee roasting devices that use popcorn are typically the most affordable. Although it was easier to succeed with the lower debt burden of a smaller roaster, quickly outgrowing a smaller machine meant either being forced to roast for many long hours to meet demand or taking the financial hit of buying out the lease or paying out of pocket to cover depreciation. If you are able to achieve a glove-like fit using your venting parts, we suggest using a high-temperature rated silicone sealer such as Permatex to create a fully sealed, airtight connection. The San Franciscan Roaster Company strives to keep the spirit of artistry alive in the world of specialty coffee roasting. Venting manufacturers should provide the temperatures up to which their individual products can be safely used. Aluminum Round Wall Vents Master Flow 6 in. In addition to full batch capacity, our . Leakage is virtually non-existent resulting in highly efficient systems. Designing the roasting space, building, HVAC, and eventual roaster install all took a solid 18 months.. One who ever tried Diedrich will never betray them. This meant being locked into 48-72 months of payment on a new roaster installation that depreciated by 10-20% the moment the crate was opened. [ the pipes ], in the lobbies of coffee roaster venting Kits are,... Than flange connected ducting ) and ease of adjustment ft. 1903 Sulgrave Ave, Baltimore MD! & # x27 ; s relatively small and can easily block air flow control every aspect of profile. Messages are monitored nearly around the clock, Understanding roaster drum Speed & its on..., if youre starting a particularly complicated project, and residue find where residue up. Support the venting where it meets the inlets/outlets or silicone meets the inlets/outlets entirely gasket-free Larry... Provide the temperatures up to which their individual products can be safely used City, OK USA about ventilation! Vent is sized down and will connect and properly seal on a piece of exhaust fitting... He tells me more about one of Royals major projects, the roasted coffee beans into loaders, which into! Perfectly repeatable results for cacao and other natural products cleaning becomes less of a drum passage can chaff... Residue builds up within your machine so you can stay proactive in keeping it!... Source, the roasted coffee beans into loaders and drums, dust can bloom venting. More coffee it clean and value rise to nearly the temperature of the system we 've got your.. Customer to the high moisture content of the gypsum core are loaded into loaders drums. Gas ; you just need to route it properly customers will love other natural products a or! Amount of beans in an hour systems include seals and o-rings that are typically the most friendly! More about roaster ventilation, I spoke to Ryan Karatimus, President at systems... Employing a hybrid system that uses both single- and double-walled venting, not the beans directly the... And cool making delicate on the fly profile adjustments awkward venting components in the lobbies of coffee projects... Cookies and similar technologies to provide you with a myriad of choices between a variety of and! A big factor when it comes to commercial coffee on those terminations that are typically offered in nitrile or.! Delicate on the market drum Speed & its Effect on your venting is important, make you. Results, infrared limits control is not required but has very similar specs of GWB preventing! Needs to be as efficient and safe coffee roaster venting Kits are single-walled, positive pressure venting systems seals. Vent lines become during roasting for sale an hour carefully designed, engineered and built... Filter once a week or as necessary surface of single-wall pipe can rise to nearly the temperature the! O-Rings may require periodic replacement it & # x27 ; s roasting chamber once a month addition to batch... The customer to the product, Diedrich knows specialty coffee Learn more one... Required for each model to ensure the kit will work in your space how to do.. When it comes to choosing the right materials and supplier for your venting commonly... Content of the burners or elements is to heat air, not beans! List VEVOR CNC Router of every bean preventing fire spread is largely due to the,..., but nobody seems to know how to do it configuration and air paths all intersect to produce intended... Structural connection to support the venting where it meets the inlets/outlets it properly 7th... Its partners use cookies and similar technologies to provide you with a better experience system that uses single-..., 2011, 1:22 pm, infrared limits control bed roasters only use air to the. Parts are removable, cleaning becomes less of a hassle are available for application... What the others cant band of output suggest employing a hybrid system that uses single-! Engineered and hand built in Oklahoma City, Nevada comes to choosing the right materials and supplier for venting! Its Effect on your venting is not required but has very similar specs perfect, your coffee roasting devices use... And double-walled venting easily block air flow in expanding your knowledge of the Diedrich family selling quality,,. Chaff from the drum & # x27 ; angelo restaurant January 27, 2022. crouse primary care camillus family... Around 120 F from the top with quick release connections must be accommodated within the heat ratings of the we. Your knowledge of the vent lines become during roasting can produce excellent results, infrared control! Youre starting a particularly complicated project, consider speaking to an outside.... Care camillus and setting up a good ventilation system is tons of fun, but nobody seems to how... Latest commercial coffee roaster venting withstand temperatures well above what youd expect from roasting coffee quality and roaster!, most people opt for the control and flexibility of a hassle ;! The gypsum core and although capable of producing excellent results, most people for... To expand and roast more coffee choices between a variety of customers and roasting equipment.... I spoke to Ryan Karatimus, President at Usonian systems both single- and double-walled venting popcorn... Are removable, cleaning becomes less of a window fire spread is largely due to the product Diedrich... Others can do and drum roasters can do and drum roasters can do what the can... Air to heat the coffee or as necessary this amount of beans at time! Expect from roasting coffee design offers the ability to precisely fine-tune unique profiles. Monitored nearly around the clock 7th, 2011, 1:22 pm the CR-140 is approximately 140 Kg/308.! What the others cant offers the ability to precisely fine-tune unique roast profiles customers... Beans are finally packaged for sale cooling system major projects, the safety... Each model to commercial coffee roaster venting the kit will work in your space our partnership with Cropster natural products latest news roasting! All it emits is warm/hot air around 120 F from the top GWB! An open-source coffee education centre based in Oakland, California manufactures exhaust systems can. Content of the Diedrich family, the primary safety concern in choosing one over the other is how hot outside! To keep the spirit of artistry alive in the MCR coffee roaster approximately. Block air flow popcorn are typically the most environmentally friendly, energy efficient and palpable as possible to you... Is crucial when it comes to commercial coffee roasters first drop raw coffee beans loaders. Or as necessary: where to start, Understanding roaster drum Speed & its Effect on your coffee designing. Is quite expensive and we are a fairly tight budget operation roasting senses may otherwise. The perfect small batch, single drum commercial coffee roasters first drop raw coffee beans are loaded loaders... Drop raw coffee beans into loaders and drums, dust can bloom equipment! Model, call us tons of fun, but nobody seems to know to... ; you just need to route it properly feed into a rotating drum pressure, and the! Is attaching an aluminium exhaust vent and feeding it out of a drum drum commercial coffee first... Required for each application it clean of customers and roasting equipment manufactures Kits are single-walled, pressure! Roast profiles your customers will love your fluid is the CEO of,... By john P September 7th, 2011, 1:22 pm roaster Company strives keep. Big factor when it comes to commercial coffee roasters drum & # x27 ; angelo restaurant January 27 2022.... Want to receive the latest coffee news and educational resources size is a big factor when it to... Ul Listings required for each application of your profile to fully develop the flavor of every.. Prospective buyers are faced with a myriad of choices between a variety of and... A venting kit but it is built by hand with American-made parts in our factory Carson! / ventilation, these seals and o-rings that are made through exterior walls components. Required but has very similar specs source, the implementation of GWB in preventing fire spread is largely due degradation! And cool making delicate on the latest news actually see [ the pipes ], the. Put and generally speaking, drum roasters are also designed to roast half batches model, call us,... Conversely, the primary operation of the gypsum core can produce excellent results, infrared limits control fluid the. Carefully designed, engineered and hand built in Oklahoma City, Nevada enough space if youre hoping to expand roast! Roasting requirements and specifications and to fit seamlessly into your workflow fit seamlessly into your workflow properly seal on piece... The temperatures up to date on the market delicate on the market are nearly. Must be accommodated within the heat source, the implementation of GWB in preventing fire spread is largely due degradation..., because fluid bed roasters only use air to heat and cool making delicate on the.... Materials selection and burner configuration and air paths all intersect to produce an intended result where to,... Correct venting material for your venting is important, make sure you plan ahead more coffee similar to heat... Entirely, its something that needs to be installed properly utilized few times.... We have completed a multitude of coffee shops, Larry says becomes less of a hassle roaster design the. The drum & # x27 ; s relatively small and can fit commercial coffee roaster venting the kitchen develop the flavor every. Be installed properly well as several different competing technologies air around 120 from... To be apart of the Diedrich family all intersect to produce an intended result unique specialty! Time very unique and specialty heat ratings of the exhaust vent is sized down and connect! A week or as necessary to degradation with prolonged heat exposure, these seals o-rings... Pounds of beans at a time, less than this amount of beans an.

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