How many gravity points will explode a bottle?

If a difference of around 3 gravity points (between primed and final gravity) will carbonate a beverage (yes, depending on style), how many gravity points will make a bottle bomb?

No, I'm not trying to make one - nor am I trying to trying to carb with residual sugar and the difference between measured and target gravity. I'm just one more paranoid n00b, curious about the effects of missing my final gravity and wondering how much wiggle room there is.

Let's say I'm bottling with 12oz reusable longnecks from LHBS, and storing at 68F.

Topic bottle-bomb final-gravity carbonation cider beer homebrew

Category Mac

1
answered at

There is no hard and fast rule on when bottles will go bang. You can calculate the amount of CO2 produced in bottle fermentation from the gravity drop just like you can calculate the amount of alcohol produced, but when it goes bang depends on several other factors, of which the pressure rating of the bottle and the amount of head space are the two main ones. (Less head space means more pressure from the same amount of CO2 produced.)

When in doubt, err on the side of caution when priming or bottling early, leave ample head space, and use heavy duty bottles that come with a decent pressure rating.

1
answered at

In my experience, 0.010 SG above terminal gravity is asking for bottle bombs.

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