Broken Glass

As I was washing the dishes one day, I heard a slight crack. I looked around the kitchen but didn't notice anything...but soon the smell of kombucha filled the room. Uh-oh.







It turns out, a bottle of my kombucha had exploded- as a kind reminder not to leave your kombucha bottles out for too long for a second fermentation.






I have been fortunate to have never had a bottle of kombucha explode on me before this day, and after brewing kombucha for over a year, I guess it was about time.

Luckily, the explosion was a lot less dramatic than it could have been. When I first began bottling kombucha, I had been nervous about shards of glass ending up on on my wall.

Tips to avoid kombucha bottle explosions:

-As mentioned in my previous post, Kombucha + Fizz:

• Beer bottles with their narrow necks and tight caps are ideal for creating fizz, and the longer you leave your bottles out for a secondary fermentation, the more fizz will build up. HOWEVER, if you leave your bottles out for too long, and especially with such tight seals, you run the risk of them exploding. Some people recommend 1-2 days for a secondary fermentation, others 3-4 days, and some recommend even longer. It all depends on various factors, such as temperature (higher temperatures = faster fermentation).
  
• My advice: If you're fermenting a batch, try a bottle after 1 or 2 days (more or less days depending on previous experiences, etc.). Then decide whether your other bottles are ready to refrigerate, or if they could use some more time fermenting.
  
• If you can hear your kombucha bottles at room temperature fizzing, refrigerate it!!
  

**Please note that this graph is not to scale whatsoever, and was merely created in order to illustrate a concept.**

***The longer you leave your kombucha bottles out for a second fermentation, the more fizzy your kombucha, but the more risk you will have of your bottles exploding. Experimentation and practice are key!***

-Read this discussion thread on bottling technique from some fellow kombucha fermenters.

• According to this thread, flip-top beer bottles can be a good option, because the rubber seal releases some of the pressure that may cause your bottle to explode.

Adding to my list of broken kombucha bottles includes one instance when my refrigerator somehow got to freezing temperatures, causing the kombucha to freeze and expand (when water freezes into ice, the volume expands as the molecules form a crystal lattice), causing another kombucha bottle to break.





At the time I decided to take an artistic approach to the situation, resulting in this photo:

Kombuch-sicle, anyone?

Home-brewing (and in fact, brewing in general) is never perfect. Accidents happen, but they are all part of learning how to brew and how to perfect your technique, and make your home-brewed kombucha that much more worthwhile. What interesting kombucha experiences have you had?