Homebrewers - Whats in the fermenter?

[BeerAdvocate]

Originally Posted by kenstogie

I never had a bottle explode (thankfully). I assumed that the caps would blow off. The actual glass blow apart?

Leaving too much headspace in the bottle can cause bottle bombs also.
I learned this the hard way on my 2nd beer I brewed. It was the last amount of beer in my bottling bucket and I didnt want to waste it so I bottled it and it only filled the bottle half way. I went ahead and capped.
Two weeks later, at about 4am I hear glasses shattering. Im still finding little pieces of glass in my brewing room in the basement.