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How to Choose the Best Kombucha Bottles

If you have been brewing kombucha for a while, you would know that choosing the right bottles is critical for the second fermentation. For most, the carbonation level pretty much depends on the bottle types you chose.

Brewing kombucha requires a two-step fermentation process, and the second fermentation is when you focus on increasing the carbonation level. Exposing yeast to sugar in a sealed bottle creates carbon dioxide (CO2) in your kombucha bottle, and this is how you make your kombucha carbonated and fizzy. 

I also wrote a post about how to make your kombucha extremely fizzy and introduced a few typical kombucha bottles.

Today, I want to talk more in-depth about bottling – which bottles to choose and why.

I previously introduced three different bottle types from the earlier post about kombucha carbonation, and of course, there are reasons why those were the chosen winners for kombucha brewers.

This post is more focusing on listing things to consider when choosing your perfect kombucha bottles. It would be easier this way so you can find bottles that work the best for you.

Choosing the right bottles is critical for the second fermentation. For most, the carbonation level pretty much depends on the bottle types you choose.

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First, choose a glass bottle.

Plastic bottles are a big no-no. No one would/should recommend a plastic bottle.

Why? During the second fermentation, your main goal is to build up the carbonation (as much as you can). And you would need a container that is sturdy enough to endure the pressure built up during this process. 

You definitely don’t want to see your bottle explode

Using a glass container is safer than a plastic bottle as it is sturdy enough to force the CO2 to be dissolved in the liquid.

Second, choose a sturdy lid.

There is no doubt that all the kombucha brewers would choose a glass bottle. However, when it comes to choosing a cap, there is a discourse on whether a stainless steel or plastic cap works better. Honestly, I don’t think it really matters. I’ve found many posts or YouTube channels telling people not to use a plastic cap because it could get loose easily. I’ve also read posts about how people should use plastic caps over stainless steel caps in order to not break the bottles. You see, these controversial ideas floating on the internet confused me a lot at first. The basic is, however, pretty simple. You just need to have a lid that is sturdy enough to hold the carbonation. And that’s it! That’s why people are suggesting stainless steel lids as they can last for a while. Potential Issue #1: loose caps A plastic lid might work for a while, but after many times of brewing kombucha, it will get lose, which totally makes sense. During the second fermentation process, the lid holds the pressure from the increased CO2, and a plastic lid would get weaker over time. Does it mean that you “should” choose a stainless steel lid? No, not necessarily. In fact, because you won’t be the only person with the issue, you can easily find the replacement lids from Amazon.com.   Potential Issue #2: built-up pressure Note that people’s concern with the stainless steel caps is mainly  when you build up too much carbonation in the bottle. Well yes, if you build up too much pressure in the bottle, your bottle could crack thanks to your strong stainless steel caps. But if you have a good control on the carbonation and if your bottles are study, you won’t need to worry too much about it.

Last, choose bottles with narrow necks.

If your bottleneck is wide, you have more chances to lose carbonation in the process of the second fermentation.

A typical example is the mason jars. As much as it is true that mason jars are very sturdy (and trustworthy) to store numerous things (and I love them!), these jars definitely do not hold the carbonation. Mason jars are in fact more suitable if you want to keep a vacuum status. When the pressure builds up from inside, Mason jars won’t hold the pressure and lose fizz eventually.

Just choose bottles that have narrow necks, and it will help you not worry too much about how Mason jars work or whatsoever!

 

Comparing kombucha bottles

 

Now you know what to consider when choosing bottles to brew kombucha.

Below is the list of glass bottles that work for kombucha brewing. They are all different, and honestly, none of them is perfect. This means that there is no right answer, and you should make a decision based on your personal preference!

  • Pro: Narrow neck
  • Con: Lids will need to be replaced eventually

Click here to find these bottles from Amazon

  • Pro: Somewhat narrow neck
  • Con: Lids can get rusted and loose eventually

Click here to find these bottles from Amazon

Conclusion

Of course, there are glass bottles on Amazon.com that many people would recommend as the best kombucha bottles. (Check out the best known swing top kombucha bottles.)

However, it does not mean that that’s the ultimate bottle everyone should use. In my case, I don’t like the swing-top bottles because it takes some effort to open or seal the bottles, which is not so recommended for people like me who have arthritis.

So, my suggestion would be that you should explore to find the bottles that work the best for you. Just keep in mind the principles to choose kombucha bottles, and then, you should be fine.

The bottles don’t necessarily need to be a specific bottle designed for kombucha. Everyone is different, and what you prefer is, of course, different from what I prefer. As long as the bottles can keep the carbonation, the rest is up to you. There are numerous bottles out there you can find for your second fermentation.

I hope you enjoy your journey to find the right bottles! Experimenting is always fun. 🙂

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Choosing the right bottles is critical for the second fermentation. For most, the carbonation level pretty much depends on the bottle types you choose.
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