DaleB Posted February 3, 2011 Share Posted February 3, 2011 Hi All, Having an issue with my latest brew, Aust Pale Ale, It fermenter for about 2 1/2 weeks using S-04 yeast at 22c, then bottled in Pet 640ml with 2 carb drops per bottle. They have been sitting at 22-24c for the past 2 1/2 weeks, then in the fridge for about 4 days, opening these bottles they appear Flat with some bubbles, and really not much head. Any ideas what has gone wrong? Link to comment Share on other sites More sharing options...
Muddy Waters Posted February 3, 2011 Share Posted February 3, 2011 It sounds like they should have reached carbonation in those conditions but you may have to give them more time. I find carbonation of ten takes a little longer in PET. Do the other bottles feel tight or do they have some give when you squeeze them? Link to comment Share on other sites More sharing options...
PB2 Posted February 3, 2011 Share Posted February 3, 2011 640ml PET?? S-04 tends to sediment very strongly in just 7 days, so the brew may not have sufficient yeast in suspension and may be a bit sluggish with the secondary fermentation. Give them a shake to re-suspend the yeast and leave them above 18degC for another week or two. Link to comment Share on other sites More sharing options...
DaleB Posted February 3, 2011 Author Share Posted February 3, 2011 I thought they were 640ml, which ever size the coopers ones are. Il give them a small shake tonight and check in a week or 2. Thanks Link to comment Share on other sites More sharing options...
PB2 Posted February 3, 2011 Share Posted February 3, 2011 Yep, Coopers PET bottles are 740ml. Our carbo drops are a source of sugar (sucrose and glucose) and nothing more. So, assuming you haven't put under-sized drops in, they will perform in the same way as a measured dose of white sugar. Link to comment Share on other sites More sharing options...
LeonardC2 Posted February 4, 2011 Share Posted February 4, 2011 How did the beer Taste? Any off flavors? I read on morebeer.com's page all about off flavors/causes,& it sounds like maybe a spike in fermenter temps,or something else that made the yeast flocculate too quickly. It's not good for beer to sit on dead yeast too long. Too much to state here,but go have a look. Those sort of things can cause the problem your having,to my knowledge... Link to comment Share on other sites More sharing options...
DaleB Posted February 4, 2011 Author Share Posted February 4, 2011 The beer tastes fine, the yeast isnt dead as far as I can tell, and the fermentation was at a higher temp yes, however the s04 did its job very quickly and was stable temp during those first few days. There are no off tastes, no diacetyl and no bad aroma's, the only issue is the carbonation Link to comment Share on other sites More sharing options...
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