Every CO2 supplier we could find in the Minneapolis area (Minnesota) was checked one by one, and 15 of them made the list. 2 will refill the cylinder you walk in with. 7 only swap it for a different tank, which matters if yours is new or an odd size. 6 would not confirm either way, so those are marked call to confirm rather than guessed at. 6 confirm food grade CO2 for anything you actually drink; the common sizes here are 5lb, 2.5lb, 10lb; most cover soda, homebrew, welding.
15places listed
2confirmed refill
6confirmed food grade
Last checked September 2026
Sorted for you: places that refill your own tank come first, then the most complete, confirmed listings. Exchange-only and unconfirmed spots follow.
KeyRefillBothExchangeConfirm
CM2 Supply - Minneapolis
Refill + Exchange
3842 Washington Ave N · Minneapolis, MN 55412
ServiceRefill + Exchange
Food gradeCall to confirm
Tank sizes2.5lb / 5lb
Your cylinderYes, refills yours
homebrewsodawelding
Hours Mon-Fri 07:30-17:00; Sat-Sun Closed
Current CM2/Minneapolis Oxygen location is the merged Minneapolis fill plant and retail store. Official location evidence states cylinder exchange plus purchase, fill and return gas cylinders, and explicitly lists CO2 service to restaurants, bars, breweries, fabricators and other customers. Recent Twin Cities community evidence specifically reports 2.5 lb and 5 lb CO2 exchanges and confirms that customer-owned CGA-320 cylinders may be refilled depending on timing. The former 3021 Central Ave NE Central McGowan location moved to this Washington Ave site in December 2025 and is not counted separately. No reliable public branch email or explicit food-grade designation was found.
Official current CO2 refill page states that Weber & Troseth refills a range of customer CO2 cylinders, uses beverage-grade CO2 certified for food and beverage uses, and can refill most residential CO2 canisters including SodaStream-style canisters. No numeric portable cylinder sizes were published, so tank_sizes remains unknown. Email is the current official public business email.
4110 Valley Industrial Blvd S · Shakopee, MN 55379
ServiceExchange
Food gradeYes
Tank sizes10lb
Your cylinderExchange only
homebrewsodawelding
Hours Mon-Fri 07:30-17:00; Sat-Sun Closed
Official current location page verifies the Shakopee CO2 gas branch and explicitly states cylinder exchange. A current local listing for this exact branch documents a 10 lb food-grade CO2 tank exchange. Same-cylinder refill is not established for this branch, so it is classified as exchange. No reliable public branch email was found.
Official current Toll Gas materials verify the Plymouth location and explicitly advertise food-grade CO2. Recent Twin Cities community evidence documents a confirmed 2.5 lb CO2 exchange at Toll Gas. Same-cylinder refill at this branch was not established strongly enough for classification. No public branch email was verified.
Current local branch listing verifies the active Eagan MATHESON retail gas store. A September 2025 customer report at this exact branch documents swapping a 5 lb CO2 tank for a home beverage setup. MATHESON's current official materials verify info@mathesongas.com as its general contact email. Food-grade status was not established for this branch.
Official current site verifies the active Saint Paul retail gas location. Recent current local reviews document CO2 tank service, including a 5 lb homebrew CO2 tank and a customer whose CO2 cylinder was swapped immediately. The current official site masks its email in readable text, while a recent public municipal document for OSC verifies info@oxyserv.com. Food-grade status was not explicitly established.
Official current FAQ explicitly states that Zipps swaps CO2 canisters. Recent Twin Cities community pricing evidence specifically identifies a 5 lb CO2 exchange at Zipps. No current public email or explicit food-grade designation was verified.
Hours Mon 10:00-16:00; Tue 10:00-16:00; Wed 10:00-17:00; Thu 10:00-16:00; Fri 10:00-18:00; Sat 10:00-16:00; Sun 11:00-15:00
Current official contact information and recent local listings verify the active Medina homebrew and kegerator business. Recent Twin Cities community evidence identifies Beer Meister as a CO2 exchange source. Exact exchange cylinder sizes, food-grade designation, and a public email were not verified.
Official current Ham Lake location page explicitly lists CO2 service and cylinder exchange at this retail branch. Although the page also describes gas-cylinder purchase and return, it does not clearly establish same-cylinder CO2 refill at this location, so the conservative classification is exchange. This address is also shown on Toll materials following the CM2 acquisition and is counted only once.
Current CM2 site verifies this physical St Paul beverage carbonation branch. CM2's current business materials identify its BevCarb operation as a dedicated beverage carbonation and CO2 service line for restaurants, bars, breweries and other beverage customers, supporting food_grade=yes as branch-relevant beverage-grade service. Portable customer-cylinder refill versus exchange and sizes were not established. No reliable current public branch email was found.
Current 2026 NuCO2 hiring materials identify the Minneapolis-area depot at 540 Apollo Drive, Suites 30 and 40, Lino Lakes. NuCO2's current official site states it supplies ISBT-certified beverage-grade CO2, including bulk systems and high-pressure cylinder ordering, and publishes its corporate customer-service email and 24/7 support number. Public walk-in portable-cylinder refill versus exchange behavior and local depot hours were not established.
Official current Toll Gas location page verifies the Lakeville gas and welding branch. Current company materials explicitly identify food-grade CO2 among gases supplied through its Plymouth, Blaine/Ham Lake, and Lakeville locations. Public branch-specific evidence does not clearly distinguish portable same-cylinder refill from exchange or publish supported cylinder sizes. No public branch email was verified.
Official current branch page explicitly lists carbon dioxide among gases available at this Ramsey store and publishes a branch-specific email. Refill versus exchange behavior, food-grade status, and portable CO2 cylinder sizes were not published.
Official current branch page explicitly lists carbon dioxide among gases available at this Roseville store and publishes a branch-specific email. Refill versus exchange behavior, food-grade status, and portable CO2 cylinder sizes were not published.
Linde Welding Gas & Equipment Center - Minneapolis
Call to confirm
2801 E Hennepin Ave · Minneapolis, MN 55413
ServiceCall to confirm
Food gradeCall to confirm
Tank sizesAsk when you call
Your cylinderAsk
weldingindustrial
Hours Mon-Fri 07:00-16:30; Sat-Sun Closed
Official current branch page verifies this Minneapolis retail gas location and explicitly lists Carbon Dioxide among available gases. Linde's official general contact email is used because no branch-specific public email was found. Portable refill versus exchange behavior, food-grade status, and cylinder sizes remain unknown.