That happens with sourdough starter and homemade soda too! Fermentation is fun but can be very messy....That reminds me of the time my former MIL decided to make her own sauerkraut. She made up several big crocks full of cabbage, shoved the lids on tight and stored them in her basement while she went on vacation. She came home to a reeking house and a basement covered in rotten cabbage (the crocks had exploded because the lids were tightly sealed).![]()
I never have had a bottle blow doing homebrew but then I always used overengineered German bottles. But quite often when cracking open a bottle it was quite obvious I had eyeballed(and not calculated) the final carbonating sugars. This was probably due to my "evaluations" on previous brew runs during the bottling process.

