First attempt at home brew. Not sure what to look for. My brewing time line so far is:

  • 28 days in fermenter tank.
  • Bottled at room temp for 36 days.
  • Put in fridge yesterday, 24 hours refrigerated so far.


  1. Bottles have small rafts floating on top, will those settle?
  2. How long should I leave in fridge before trying?

Thx Ken

  • please provide a photo
    – Mr_road
    Commented Mar 28, 2018 at 9:23

4 Answers 4


"Rafts" or anything floating at this stage sounds infected.

If you had good fermentation it's unlikely it will be harmful to sample.

Open one, see if you can recover the floaty. If its white / creamy color. I would sample taste the beer. If it's blue / black. Dump em.


Floating things in the bottle after that period of time doesn't sound good... Did you add some sort of solids like dry hops or spices to the fermentation? Could be yeast of course, but this usually settles at the bottom. Or did you shake it?

One way to be sure: try it. It should be carbonated and if it doesn't smell bad it is probably good to go.

To answer your question a bit more: 36 days in the bottle is usually( for a 'normal' beer ) more than enough time to carbonate the beer. After that it is ready to drink. You can put it in the fridge to cool it so it taste more refreshing but it is not a necessary step of the brewing proces.


This sounds like a likely infection. Be on watch for rope-like shapes, this is commonly caused by acetobacter. In the meantime 36 days is more than enough for most styles. Depending on style it might have been sitting on the fermenter for too long. I've come across floaters and spotty flask necks when an IPA was in primary for 5 weeks. After a tasting, it was clear it had developed a soapy flavor as mention by John Palmer due to long fermentation.

  • 1
    Ropiness is more likely to come from pediococcus than acetobacter. Pediococcus is anaerobic, a common contaminant in brewing ingredients, and forms rope like structures in the beer. Acetobacter is aerobic, and forms a slimy pelllicle. Either way it's an uninvited guest in beer. Commented Mar 29, 2018 at 4:48
  • Yes, this is true. In anaerobic conditions this would be caused by cocci.
    – Martin
    Commented Mar 29, 2018 at 11:35

I don't have too much experience myself(only made 2 batches so far). There is usually a deposit of sediment and yeast at the bottom of the bottle after carbonation. Mine was noticeable after a few days after carbonation and bottling.

Like others have said, stringy parts usually indicate an infection.

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