After fermentation, I put priming sugar and put them to bottles and wait for 7-10 days in bottle. I open somt They look OK, good foam and carbonation. No fancy smell or off-taste.
Then I put them in fridge for 1-2-3 days (unopened bottles), no matter what after fridging I lose the foam.
Before putting fridge I have foam, and if i put some sugar just testing, the bottle fills with more foam. But after fridging, if I put sugar nothing changes.
Ale, Lager does not matter, always same thing. Why I get stale beers out of the fridge? The temperature of fridge is 4 Celcius, and has a fluroescent lamp that lights up when the door is open. Should I fridge? If so how long?