Carbonation Stone

Force-carbonate your beer in days instead of weeks — or skip the carbonation step at packaging entirely.

The carbonation stone diffuses CO2 into your beer as thousands of micro-bubbles through a 0.5 micron sintered stainless steel stone. The smaller the bubble, the more surface area in contact with the beer and the faster the gas dissolves. What takes one to two weeks of head-pressure carbonation happens in 24–48 hours through the stone — with cleaner, finer carbonation and no risk of overshooting.

It also doubles as a wort oxygenation stone. Connect an oxygen regulator instead of CO2 and dissolve pure O2 into chilled wort before pitching — the single biggest improvement most brewers can make to yeast health and fermentation performance.

How it works

Mount the stone to a 1.5" TC port on your fermenter, connect your gas line to the barb fitting, and set your regulator to 2–5 PSI above current tank pressure. CO2 diffuses through the stone wall and dissolves directly into the beer. Carbonate cold (below 40°F / 4°C) for fastest absorption, and verify final carbonation level with your spunding valve or pressure gauge.

The 6" Extension Kit

Without an extension, the stone has to be installed inside the fermenter before the wort goes in — and it sits there through the entire fermentation just so it's in place when carbonation starts.

The extension kit eliminates that. The 6" extension tube reaches the stone through your racking port or any other access port and submerges it in the beer — so you can attach the stone when carbonation actually begins, not before fermentation starts. No stone sitting in fermenting beer for two weeks, no extra part to clean off krausen and yeast, and the stone stays available for wort oxygenation on your next batch in the meantime.

Includes the 6" TC extension tube, TC clamp, and gasket.

What's included

Stone Only: 0.5 micron sintered stainless carbonation stone, 1.5" TC mount, gas barb fitting

Stone + 6" Extension Kit: Everything above, plus 6" TC extension tube, TC clamp, and gasket

Specifications

Stone: 0.5 micron sintered 316 stainless steel Stone length: 4-1/4" Insertion depth: 6-5/8" from TC flange face Connection: 1.5" Tri-Clamp Gas inlet: barbed fitting for gas line Working pressure: rated for standard fermentation pressures (use with spunding valve or PRV-equipped tank) Cleaning: soak in warm PBW, backflush with CO2 — never touch the stone surface with bare hands (skin oils clog the pores)