Batch Priming Issue

[nicklawmusic]

I have a batch priming issue...

Having read up on batch priming, and following instructions, my batch primed beers never seem as carbonated as when I add 2.5g of sugar to each 330ml bottle.

Although I'm getting some fizz from batch priming, it's nowhere near the same as bottle by bottle, and the result means less body in my beer.

The last beer I made, a stout, I decided to give it more sugar when batch priming than the style recommends, so I added 150g of boiled and cooled dextrose water to the bottling bucket for 21L of beer.

After 9 days of conditioning, I'm not getting much carbonation, yet with bottle priming even after a week I'm getting good carbonation.

Am I doing something wrong?

 

[dwhite60]

Got a feeling you're weighing your sugar incorrectly.

21 litres makes 70, 300ml bottles.

You need 175g of sugar for 21 liters to equal 2.5g per 300ml bottle.

How are you weighing your sugar?

After filling are you storing both batch primed and individually primed
in the same area? Temp can make a big difference in carbonation time.

Are you sure you're thoroughly mixing in you batch priming solution?


All the Best,
D. White

 

[nicklawmusic]

I usually get 63 bottles from around 21L as there's some dead space in the conical fermentor.

I'm storing them in the attic bedroom as it is around 20C up there.

Admittedly the one I tried last night was 9 days old but I also tried another one is bath primed several weeks ago (an IPA) and the carbonation wasn't much better on that one than when I'd tried it when it was a week old, if that makes sense.

Just want to make sure that if I'm going to keep batch priming, they have good carbonation like they do when fill them with sugar individually as I'm a small scale (very small scale) commercial home brewer, so these beers are getting sold in some local shops.

 

[kh54s10]

The problem is the 9 days.... wait another 20-30 days at 70 degrees Fahrenheit and you should have good carbonation.

I don't know about the individual bottle priming, but would expect longer than nine days that way also. I always batch primed before kegging. I felt that I would get more even results, and generally got consistent carbonation, bottle to bottle.

 

[BarleyPops]

Batch prime, stir w/o aeration and let sit for 2 weeks.

 

[nicklawmusic]

I presume you mean let sit for two weeks in bottles, right?!

 

[BarleyPops]

Yes, two weeks in bottles at room temp has always worked for me.

My only problem I've had batch priming was not stirring in the sugar solution very well. I now stir periodically through the bottling process (again try not to aerate, just stir gently)

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