<p>The short answer is - "It depends, probably not".</p>

<p>Bottles are usually rated for <code>Volumes of CO2</code>.</p>

<p>Champagne bottles are typically rated for 7 volumes.
Wheat beer bottles should take around 5 volumes.
Ales/Lager beers are normally carbonated at 2-3 volumes.</p>

<p>However, flip-top bottles (I assume you mean the ones with the rubber seal) are produced in both CO2-rated and cheap un-rated beverage bottles - found in supermarkets.</p>

<p>As you say 1.044 is quite high - plenty of beers <em>start</em> around that point.  This could generate a lot of CO2 (> 15 volumes) if it fermented out.</p>

<p>The actual CO2 volume calculations are discussed in <a href="https://homebrew.stackexchange.com/a/11498/13385">another answer</a>.</p>

<p>It might be better to transfer the mead to PET(plastic) bottles, and store them in a safe location.  </p>

CC BY-SA 4.0
2018-09-18T04:10:59.183Z
2018-09-18T04:10:59.183Z
Kingsley
<p>I'm making mead, 3 lbs honey topped up to 1 gallon with champagne yeast. My final gravity is ~1.044. Still lots of sugar in there, but fermentation had all but stopped. I put it all into 1 Liter flip top bottles. Here's the question: have I just made bombs? How much pressure can fermentation-grade flip top bottles take? </p>

<p>I know 1.044 is still kinda high; I don't need a lecture. I don't think that fermentation will start again, but if it does and this stuff pushes itself dry, how much pressure will that make, and can the bottles handle it?</p>

CC BY-SA 4.0
2018-09-18T04:11:49.247Z
What was the original gravity (OG) of your mead?   What yeast did you use?
Kingsley
<bottles><carbonation><bottle-conditioning><mead>
How much pressure can a flip top take?
mtmurdock
# How much pressure can a flip top take?

(Asked by: username_0 on 2018-09-18)

I'm making mead, 3 lbs honey topped up to 1 gallon with champagne yeast. My final gravity is ~1.044. Still lots of sugar in there, but fermentation had all but stopped. I put it all into 1 Liter flip top bottles. Here's the question: have I just made bombs? How much pressure can fermentation-grade flip top bottles take?

I know 1.044 is still kinda high; I don't need a lecture. I don't think that fermentation will start again, but if it does and this stuff pushes itself dry, how much pressure will that make, and can the bottles handle it?

**Tags:** bottles, carbonation, bottle-conditioning, mead

> **Comments:**
> **username_1**: What was the original gravity (OG) of your mead?   What yeast did you use?  

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## 1 answers

### Answer by username_1 on 2018-09-18. Score: 1

The short answer is - "It depends, probably not".

Bottles are usually rated for `Volumes of CO2`.

Champagne bottles are typically rated for 7 volumes.
Wheat beer bottles should take around 5 volumes.
Ales/Lager beers are normally carbonated at 2-3 volumes.

However, flip-top bottles (I assume you mean the ones with the rubber seal) are produced in both CO2-rated and cheap un-rated beverage bottles - found in supermarkets.

As you say 1.044 is quite high - plenty of beers *start* around that point. This could generate a lot of CO2 (> 15 volumes) if it fermented out.

The actual CO2 volume calculations are discussed in [another answer](https://homebrew.stackexchange.com/a/11498/13385).

It might be better to transfer the mead to PET(plastic) bottles, and store them in a safe location.


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