How to properly store and condition your bottled homebrew

Thursday, August 26, 2021
How to properly store your bottled homebrew beer


Proper storage and conditioning of homebrew beer - for better tasting beer


You've done the hard work.

You've prepared a nice wort, added some hops, maybe used a yeast energizer and a beer enhancer and it fermented well. You let it ferment in the drum for a good amount of time.

Then bottling day came and you got your golden brew safely away under the cap.

Now what?

It's time to bottle condition your beer and that doesn't mean you hide it under a blanket in an old swap-a-crate box and forget about it for a few weeks. 

Well actually you can do this, but if you want great tasting beer there are a few things to think about when storing and conditioning beer. 

I'm gonna assume you bottled, left a good level of space in the bottle neck and you've capped the beer and are ready to place the beer somewhere safe. 

conditioning home brew beer


First with the warm and then with the cold


When you are bottle conditioning, you are adding a second addition of sugar to your beer. This is so that the second round of fermentation can take place. 

The yeast still present in the beer will eat the sugar and convert it into more alcohol and CO2 - this gas is what carbonates the beer. 

So, just like when you did the first round of fermentation, the yeast does its best work at a warm temperature. So, to properly store your beer so that it is carbonated, the beer needs to be kept warm for a few days. 

The ideal temperature range is between approx 18 - 25°C for 5 to 7 days. 

After a week or so, you can leave them in a much cooler place with a temperature range between approx 8 - 12°C. This will allow the beers to condition quite nicely. 

This thing about the correct temperature is real. 

Let me tell you a story. 

In the middle of a New Zealand winter, I bottled a lager beer and left it in the shed for about a month. It was cold and the sun didn't warm the shed at all. It was actually colder in the shed than outside. 

When I went to crack open the first beer, I did not hear that usually reassuring hiss of gas as it escapes from the bottle. 

The silence was brutal. 

My beer was flat. 

So I opened another bottle and had the same result. And again for a third.

I wondered if I had destroyed my beer somehow but then more sensibly I asked my self 'had fermentation actually occurred'?

It had.

What I had done was wrap the fermenter in plenty of old painting sheets which kept the beer warn enough to allow the first round of fermentation to occur. 

For the bottled beer, the problem was the freezing cold. They had sat in the shed naked as the day they were bottled and bitterly cold. The yeast became inactive and no fermentation occurred. 

The solution was to bring the beers inside where it was warmer.

I placed them in the living room and gradually they warmed up. After two weeks I opened a beer and boom, I was rewarded with the sound of CO2 releasing from the beer. The yeast had appreciated the warmer temperature, came out of hibernation and got to work on the sucrose. 

Problem solved!

Conversely, it is unwise to store beer in too hot a place. For example, don't leave it in a hot attic room all summer. The beer will simply get cooked and probably taste like mouldy cardboard

yeast temperature for beer
Treat your yeast with temperature love


Two important things that can help with proper conditioning of beer:


1. Don't be afraid of the dark


Like a vampire, you should embrace the darkness. 

Beer does not like sunlight at all. Especially if you are using recycled green beer bottles. If your beer is exposed to too much light, it is said to be 'light struck' or 'skunked'. 

The UV light causes yet another chemical reaction in the beer - the hops are broken down by the light and they form a new compound when mixed with the proteins in the beer - giving off a horrid smell just like a skunk can do.

how long to condition beer


2. How long do I let beer condition for?


You have to let your beer condition. The rule of thumb is that your beer is probably drinkable after one week but is only beginning to get close to its best tasting at three weeks. 5 and 6 weeks is even better.

If you've ever found a forgotten beer in the shed that's had three months of conditioning, you probably really enjoyed it right? 

That's just proof you need to give your beer time to mature. 

When you are ready to drink your beer, remember it is best served chilled. This reduces the chances of foam pouring out from the top of the bottleneck. This is why placing beers in the fridge overnight works best for serving homebrew. 

Some points to ponder about bottle storage

  • It's really good to have a storage place where the temperature is maintained at a steady & consistent rate.
  • Ales are happy with lower temperatures
  • Lagers are happy with higher temperatures
  • The middle of your house is probably cooler than nearer the outside. That could be a factor where you store beer.
  • If you find your beers are in too hot a place, move them! Seriously, if you leave your beers in an area where it is too hot the yeast produces a really volatile ether (I think) which makes the beer taste like methylated spirits or petrol. I know this occurs from my owner personal experience - I had TWO fermenting drums wrapped in sheets in my shed in a NZ summer and they cooked and the end result was I had to tip my bottled beers out (I didn't realise what had happened until after conditioning but put two and two together). 

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