Problems with gushing

Question

Problems with gushing

Razmooo

2018年5月14日 05:56

I have a problem, that has been pestering me for some months now. My beer gushes from time to time. For example, in one batch i have some bottles that will gush very quickly, some slowly and others not at all. The taste in all bottles is as it should be. No offlavours etc.

I sanitize everything with starsan. Bottles are placed on copper tubes, through which starsan is pumped. I dont think i over prime. The amount of table sugar is calculated is Beersmith, which is then boiled with water for sterilisation. When i mix the solution with beer, I usually mix it for 30-60 min so the solution is really homogenous. Usual batch size is 50 liters.

Do guys have any experience with such problems and what was the solution to them.

I was reading, that malt can be infected with fusarium fungi, which produces protein called hydrophobins that causes gushing. I checked the grains and none have any symptoms of the infection.

Thanks for any answers. Cheers!

Topic foam beer homebrew

Category Mac

spongessuck · Accepted Answer · 2017年3月14日 23:15

I feel like mold would be killed during the brewing process, so I'm not sure that's the root cause, though your malt should probably not have black spots on it ;).

I used to have this problem as well, although not since I switched to all-grain, and also not since I started filtering my water before using it. I've gotten advice from a friend who employs a master brewer that high iron content in the water can cause gushing.

The only other thing I can think of barring incomplete fermentation is what ElvishPriestly said, which is lots of sediment in the bottle.

ElvishPriestley · Accepted Answer · 2017年3月14日 09:49

I had some beer bottles where a lot of hop fragments had made it to the bottle. The extra surface of the hops made the bubbles start of the yeast and hops in the bottom. The bottom derbies would start to get disturbed by the bubbles and mix into the beer creating more surface area that bubbles could form on... beercano.

This was a high gravity beer with oaths added for extra mouth feel. I did taste the remains of the beer no other off flavor than a lot of yeast due to that mixing in.

Denny Conn · Accepted Answer · 2017年3月12日 16:40

If you're completely certain about everything else, about all that's left is incomplete fermentation. Is that a possibility? Although that would tend to affect every bottle. I think I'd have to got with either contamination despite your efforts.

And why do you bother mixing the priming solution so long? A minute or so shoule be more than adequate.

Problems with gushing

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