Beer has turned out Flat

[penrithbeerclub]

I bottled my Standard Coopers Pilsner about 3 weeks ago. I used the yeast it came with during fermention. I opened a few on the weekend and they are flat as a tac, with lots of residual sugar in the beer (obviously from the yeast not eating it up and sh***ing out the bubbles)

Is this a simple result of the yeast not re activating? Perhaps due to temps being too low?

Can I put the bottles on a heater pad, a bit of a shake and will the yeast then reactivate and produce the carbonation i desire??

Besides being flat and a little sweet from the residual sugar, the better was fine and no infection was visible.

 

[QldKev]

What temp has the bottles been at?

 

[wbosher]

My last batch took over a month to carb up because of low temperatures. Put some (I assume bottles?) in the warmest part of the house and see what happens.

 

[Silver]

Same happened to me recently. Due to cooler weather bottle ferment was a slow process, but time fixed that. If your impatient get them to room temp and wait a week.

 

[penrithbeerclub]

well Its western Sydney and its been cold, so Ill just leave them and see what happens

 

[Tex083]

If I want mine to hurry up I stick them in a large plastic tub of water with a fish tank heater in the water set to 18-20.

 

[wbosher]

I try to cram as many as I can in my brewing fridge when it's set to 18C. I can usually stack about 10 bottles around the fermenter and in the door. Leave for about a week and rotate.

Summer brewing is so much easier...