beer gas
this post was submitted on 22 May 2026
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A full tank is usually still at least twice as heavy as a full one. Even if the tank is built heavy, that just means there is also likely more pressure in it.
I don't think CO2 liquifies in the bottle (like many other gases), so you can't just slosh it around and listen. You need to go through weight.
The larger the canister, the higher the ratio of gas to container weight. The canister on the pic should be around 15kg of gas. Based on other similar canisters, the canister should weigh around 40kg when full. That makes the weight ratio about 3:5.
But for smaller canisters, for example this 1.5kg canister, the weight ratio drops to about 3:7.
You should still be able to easily tell the difference between empty and full, I was just interested in the gas to container weight ratios
Correct. I went and looked at both my 20lb'ers I'm carrying. Tare weight is 23.5lbs, filled weight is 43.5lbs. It's 20lbs of gas plus the vessel weight. A full tank is approx 2x heavy as a empty.