Bottling - Is 6 weeks the new 4 weeks?

[mashani]

I bottle in PETs still (740ML Coopers PETs, not the 1L Mr. Beer kind), so one bit of advice I can give there is after you tighten the cap, let the bottles sit for a while, and then tighten the cap again. You may be surprised how many you can tighten more even though you though they were tight the first time.

[monsteroyd]

Yeah what mashani said. They always seem to tighten more after sitting a bit. I use 1L MB PET with the screw on top. I've had the random flat bottle back before I did the re-tightened step.

Monty

[berryman]

Bassman, I've been thinking on your OP. I opened a beer tonight that was bottled just shy of 3 weeks in my basement and the temp is down around 60-62 deg. right now and it has decent carb but I'd like to see a little more. This was batched primed and in glass capped. I agree with the others, you lost though the cap.

[DaYooper]

Although I rarely use PETs anymore, I got in the habit of savings caps from pop bottles and rotate them on a regular basis depending on how many I have. Not worth waiting for the caps to fail (and they will eventually) via flat beer before replacing them.

[Bassman]

Thanks to all. I'm thinking that the PET cap is the culprit as many have suggested. I have been too gentle in tightening the caps for fear of stripping the threads. For fun I'll bottle mostly glass for my next batch but bottle a few PETs.