{"title":"Nitrogen Cartridges","description":"\u003cp\u003ePower your \u003ca href=\"\/collections\/nitro-mini-keg-systems\"\u003enitro mini keg\u003c\/a\u003e with \u003cstrong\u003epure N2 nitrogen cartridges\u003c\/strong\u003e. Available in 2.4g non-threaded, 4.1g threaded, and 8g threaded sizes, our food-grade nitrogen cartridges deliver the smooth, creamy pours that make nitro beer special.\u003c\/p\u003e\n\u003cp\u003ePerfect for \u003ca href=\"\/collections\/mini-keg-for-cold-brew-coffee\"\u003enitro cold brew coffee\u003c\/a\u003e too. See also: \u003ca href=\"\/collections\/beer-gas-cartridges\"\u003ebeer gas cartridges\u003c\/a\u003e (70\/30 CO2\/N2 blend).\u003c\/p\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat's the difference between N2 and CO2?\u003c\/summary\u003e\u003cp\u003eNitrogen creates smaller bubbles for a smoother, creamier pour. CO2 creates the familiar fizzy carbonation. N2 is ideal for stouts, porters, and cold brew.\u003c\/p\u003e\u003c\/details\u003e","products":[{"product_id":"pure-nitrogen-cartridges","title":"Food Grade Non-Threaded  Nitrogen Cartridges","description":"\u003cp\u003ePure pharmaceutical-grade N2 — actually rare in cartridge form. Most \"nitro\" cartridges on the market are N2O (nitrous oxide). Our 2.4-gram non-threaded cartridges are pure nitrogen, the right choice for serious nitro cold brew and nitro coffee enthusiasts who want the cascade without any sweetness from N2O.\u003c\/p\u003e\u003ch2\u003eWhy pure N2 vs N2O\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eZero sweetness:\u003c\/strong\u003e N2O carries a faint sweet note in some palates. Pure N2 is completely flavor-neutral.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePharmaceutical purity:\u003c\/strong\u003e Beverage-grade pure nitrogen — engineered for direct food contact.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSame form factor:\u003c\/strong\u003e Standard non-threaded cream-whipper format — drops into the same nitro hardware as N2O cartridges.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWelded closed:\u003c\/strong\u003e Engineered puncturable cap, welded sealed for shelf stability.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eGas\u003c\/th\u003e\n\u003ctd\u003ePure Nitrogen (N2), beverage \/ food grade\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003e2.4 grams\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eNon-threaded cream-whipper format\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003ctd\u003e2.53 inches (65mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDiameter\u003c\/th\u003e\n\u003ctd\u003e0.701 inches (18mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCap\u003c\/th\u003e\n\u003ctd\u003eEngineered puncturable, welded closed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUse with\u003c\/th\u003e\n\u003ctd\u003eKeg Smiths Nitro Mini Keg System; seltzer bottles; commercial whipper devices\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eHow to Use\u003c\/h2\u003e\u003cp\u003eDrop into the Nitro Keg System per the assembly instructions. Charge, then chill the keg for at least 30 minutes for best dissolution. Pour through a stout \/ creamer faucet for the cascading effect.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eHow is this different from N2O chargers?\u003c\/h3\u003e\u003cp\u003eN2O is nitrous oxide — sweet undertone, common in commercial whippers. This is pure N2 — flavor-neutral, preferred by serious cold brew nitro enthusiasts. Both work in our Nitro Keg System.\u003c\/p\u003e\u003ch3\u003eHow many cartridges per keg?\u003c\/h3\u003e\u003cp\u003eFor a 128 oz nitro cold brew keg, plan on 2-3 cartridges depending on how nitrogenated you want the result.\u003c\/p\u003e\u003ch2\u003ePairs Well With\u003c\/h2\u003e\u003cp\u003eUse them with the \u003ca href=\"\/products\/keg-smiths-mini-keg-system-nitrogen-with-creamer-faucet\"\u003eNitrogen Mini Keg System\u003c\/a\u003e. Prefer N2O? See our \u003ca href=\"\/products\/n2o-chargers-10-pack\"\u003eN2O Chargers 10-Pack\u003c\/a\u003e.\u003c\/p\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"How is this different from N2O chargers?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"N2O is nitrous oxide — slight sweet undertone, common in commercial whippers. Pure N2 is flavor-neutral, preferred by serious cold brew nitro enthusiasts. Both work in the Nitro Keg System.\"}},{\"@type\":\"Question\",\"name\":\"How many cartridges per keg?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"For a 128 oz nitro cold brew keg, plan on 2-3 cartridges depending on how nitrogenated you want the result.\"}}]}\u003c\/script\u003e","brand":"Keg Smiths","offers":[{"title":"10 Pack","offer_id":31439464398937,"sku":"N2-10","price":15.0,"currency_code":"USD","in_stock":true},{"title":"40 Pack","offer_id":31439464431705,"sku":"N2-40","price":45.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1724\/3211\/products\/10-Pack-N2--1024.jpg?v=1674081390"},{"product_id":"4-1-gram-threaded-nitrogen-cartridges","title":"Nitrogen Threaded Beverage Grade Cartridges - 4.1 Gram","description":"\u003cp\u003eThe first — and still the only — threaded food-grade nitrogen cartridges on the market. Same physical form factor as our 16g CO2 cartridges (3\/8\" thread, identical body), so they drop straight into any Keg Smiths CO2 mini keg system or any 16g threaded regulator. 4.1 grams of pure beverage-grade N2 per cartridge, 10 cartridges per box.\u003c\/p\u003e\u003ch2\u003eWhy threaded nitrogen matters\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne regulator, two gases:\u003c\/strong\u003e Use the same regulator for CO2 and N2 — just swap cartridges. No second nitro spear needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThreaded format:\u003c\/strong\u003e Cleaner connection than non-threaded chargers, easier to swap, no leaks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFor nitro cold brew on a CO2 system:\u003c\/strong\u003e Want occasional nitro coffee without buying a full \u003ca href=\"\/products\/keg-smiths-mini-keg-system-nitrogen-with-creamer-faucet\"\u003eNitrogen Mini Keg System\u003c\/a\u003e? Drop a 4.1g N2 cartridge into your existing CO2 keg.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eGas\u003c\/th\u003e\n\u003ctd\u003ePure Nitrogen (N2), beverage \/ food grade\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003e4.1 grams\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThread\u003c\/th\u003e\n\u003ctd\u003e3\/8\" (same as 16g CO2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eQuantity\u003c\/th\u003e\n\u003ctd\u003e10 cartridges per box\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCompatible with\u003c\/th\u003e\n\u003ctd\u003eAll Keg Smiths CO2 mini keg systems and 16g-threaded regulators\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eWhy Only 4.1g vs 16g for CO2\u003c\/h2\u003e\u003cp\u003eSame physical cartridge size, vastly different gas density. CO2 molecules are heavier and pack tighter — 16 grams fit in this size cartridge. Nitrogen molecules are smaller and lighter, so only 4.1 grams of N2 fit the same volume. Both are correct for their gas; the difference is physics, not quality.\u003c\/p\u003e\u003ch2\u003eHow to Use\u003c\/h2\u003e\u003col\u003e\n\u003cli\u003eConfirm regulator output is closed.\u003c\/li\u003e\n\u003cli\u003eThread the N2 cartridge into your regulator (replaces a CO2 cartridge in the same fitting).\u003c\/li\u003e\n\u003cli\u003eOpen the output and dial in serving pressure.\u003c\/li\u003e\n\u003cli\u003eFor nitro effect, pour through a stout \/ creamer faucet (see our \u003ca href=\"\/products\/intertap-stout-tip\"\u003estout tips\u003c\/a\u003e).\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eWill these work with my Premium Draft CO2 Mini Keg?\u003c\/h3\u003e\u003cp\u003eYes — the system is designed to accept both threaded CO2 and threaded N2 cartridges. For full nitro cascade, you'll also want a stout \/ creamer faucet tip.\u003c\/p\u003e\u003ch3\u003eHow long does one cartridge last?\u003c\/h3\u003e\u003cp\u003eFor nitro cold brew or nitro stout in a 128 oz keg, plan on 1–2 cartridges per fill depending on serving rate.\u003c\/p\u003e\u003ch2\u003ePairs Well With\u003c\/h2\u003e\u003cp\u003ePair with the \u003ca href=\"\/products\/premium-draft-mini-keg-system\"\u003ePremium Draft Mini Keg System\u003c\/a\u003e + a \u003ca href=\"\/products\/intertap-stout-tip\"\u003estout faucet tip\u003c\/a\u003e. For higher capacity, see our \u003ca href=\"\/products\/nitrogen-threaded-beverage-grade-cartridges-8-gram\"\u003e8g threaded nitrogen cartridges\u003c\/a\u003e.\u003c\/p\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Will these work with my Premium Draft CO2 Mini Keg?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes — the system accepts both threaded CO2 and threaded N2 cartridges. For full nitro cascade, also use a stout \/ creamer faucet tip.\"}},{\"@type\":\"Question\",\"name\":\"How long does one cartridge last?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"For nitro cold brew or nitro stout in a 128 oz keg, plan on 1–2 cartridges per fill depending on serving rate.\"}},{\"@type\":\"Question\",\"name\":\"Why only 4.1g of nitrogen vs 16g of CO2 in the same cartridge?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Same cartridge size, different gas density. CO2 molecules are heavier and pack tighter; nitrogen molecules are smaller and less dense. Both are correct for their gas — it's physics, not quality.\"}}]}\u003c\/script\u003e","brand":"Keg Smiths","offers":[{"title":"5 Pack Nitrogen Cartridges","offer_id":42735226978475,"sku":"N2T-05","price":15.0,"currency_code":"USD","in_stock":true},{"title":"10 Pack Nitrogen Cartridges","offer_id":42735227011243,"sku":"N2T-10","price":29.0,"currency_code":"USD","in_stock":true},{"title":"30 Pack Nitrogen Cartridges","offer_id":42735227044011,"sku":"N2T-30","price":84.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1724\/3211\/products\/5PackNitro.jpg?v=1687974715"},{"product_id":"nitrogen-threaded-beverage-grade-cartridges-8-gram","title":"Nitrogen Threaded Beverage Grade Cartridges - 8 Gram","description":"\u003cp\u003eThe bigger threaded nitrogen cartridge — twice the gas of our 4.1g format, sized for serious nitro pouring or back-to-back nitro sessions. Standard 3\/8\" thread, drops into any Keg Smiths CO2 keg system or 3\/8\" threaded regulator. 8 grams of pure beverage-grade N2 per cartridge, 5 per box.\u003c\/p\u003e\u003ch2\u003eWhy the 8g over the 4.1g\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMore pours per cartridge:\u003c\/strong\u003e Roughly 2x the dispensing capacity of the 4.1g cartridge — better economy if you nitro often.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSame threaded format:\u003c\/strong\u003e 3\/8\" thread, identical fitment to the 4.1g cartridge and our 16g CO2 cartridges. Same regulator, more gas.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePure beverage-grade N2:\u003c\/strong\u003e Same purity as the 4.1g — flavor-neutral, food-safe, perfect for nitro cold brew and nitro stout.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eGas\u003c\/th\u003e\n\u003ctd\u003ePure Nitrogen (N2), beverage \/ food grade\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003e8 grams per cartridge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThread\u003c\/th\u003e\n\u003ctd\u003e3\/8\" (same as 16g CO2 and 4.1g N2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eQuantity\u003c\/th\u003e\n\u003ctd\u003e5 cartridges per box\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCompatible with\u003c\/th\u003e\n\u003ctd\u003eAll Keg Smiths CO2 mini keg systems and 3\/8\"-threaded regulators\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eHow to Use\u003c\/h2\u003e\u003col\u003e\n\u003cli\u003eConfirm regulator output is closed.\u003c\/li\u003e\n\u003cli\u003eThread the cartridge into your regulator.\u003c\/li\u003e\n\u003cli\u003eOpen the output and adjust serving pressure.\u003c\/li\u003e\n\u003cli\u003eFor full nitro cascade, pour through a stout \/ creamer faucet tip.\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eShould I get the 8g or 4.1g?\u003c\/h3\u003e\u003cp\u003eGet the 8g if you nitro frequently — better gas-per-dollar economy. Get the 4.1g if you want smaller increments or are just trying nitro for the first time.\u003c\/p\u003e\u003ch3\u003eWill these work with my CO2 system?\u003c\/h3\u003e\u003cp\u003eYes — same 3\/8\" thread as our 16g CO2 cartridges. The Keg Smiths CO2 system is fully compatible with both gases.\u003c\/p\u003e\u003ch2\u003ePairs Well With\u003c\/h2\u003e\u003cp\u003ePair with the \u003ca href=\"\/products\/premium-draft-mini-keg-system\"\u003ePremium Draft Mini Keg System\u003c\/a\u003e and a \u003ca href=\"\/products\/intertap-stout-tip\"\u003estout faucet tip\u003c\/a\u003e. Smaller cartridge format: \u003ca href=\"\/products\/4-1-gram-threaded-nitrogen-cartridges\"\u003e4.1g threaded nitrogen\u003c\/a\u003e.\u003c\/p\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Should I get the 8g or 4.1g?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Get the 8g if you nitro frequently — better gas-per-dollar economy. Get the 4.1g if you want smaller increments or are trying nitro for the first time.\"}},{\"@type\":\"Question\",\"name\":\"Will these work with my CO2 system?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes — same 3\/8\\\" thread as our 16g CO2 cartridges. The Keg Smiths CO2 system is fully compatible with both gases.\"}}]}\u003c\/script\u003e","brand":"Keg Smiths","offers":[{"title":"Default Title","offer_id":44266364633259,"sku":"N2T8-05","price":33.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1724\/3211\/files\/8-Gram-Nitrogen-Threaded-Cartridges-Main.jpg?v=1720563989"}],"url":"https:\/\/www.kegsmiths.com\/collections\/nitrogen-cartridges.oembed","provider":"Keg Smiths","version":"1.0","type":"link"}