Why Is There Foam In My Bottle When I Open It?

Question:

When I opened a bottle of my second batch, it started to foam.

After reading some literature, it sounds as though I may have bottled a little early. Is it possible that my bottles could explode? When is a common time for bottle to explode if bottled early?

Answer:

A good rule of thumb is to bottle when your hydro reading is 1.010 – 1.020. This will lessen the chances of exploding bottles.

One thing you can do, depending if you have enough caps. Is to open all the bottles and let them breath for awhile and re-cap. Or you could pour the amount you think you’ll be drinking in one setting in pitcher to allow the carbonation to escape more rapidly.

Also, don’t rule out the possibility of you beer being contaminated. Some contamination will give you geysers when you open the bottles.