Cleaning Your Kombucha Growler Caps
We've found that as far as bottling your kombucha goes, there are some important things to take into account (see the earlier blog post about bottling and carbonation here). Our favorite vessel to bottle our homebrew is a 32 oz amber bottle. Not only does it keep the 'buch free from UV light (reducing the possibility of spoilage), it is great for effectively containing our kombucha to contribute carbonation during secondary fermentation. Arguably the most important part of your bottling vessel is the cap. You may have purchased a bottle at the store that has no carbonation whatsoever - this can sometimes be due to a faulty seal. The caps we distribute with our growlers for our 'Buch on Tap program are the best you will find - comparable to EZ cap in their ability to hold a tight seal, but not nearly so permanently affixed to the bottle. The internal cone conforms to the mouth of the bottle, creating an airtight seal. The interchangeability of these caps, as opposed to flip-tops, does make cleaning bottles easy, though due to the physical characteristics of our caps there is a trick to properly cleaning them, which is fine considering they're reusable. Cleaning your caps is important especially when you are inevitably finding bits of yeast and tea stuck in them.
So, to get all parts of your growler caps nice and clean, you'll just need to separate the inner cone from the outer, threaded lid. I like to use a butter knife. Once you've done this, you can easily put them through the dishwasher (if that's how you swing), but we like to scrub them and let them soak in diluted bleach or soap, allow them to dry and then reassemble.
It's a simple process, but important to know - your set of growlers can last you for years to come. Additional lids can be found here. Happy brewing!