Fermentation after pasteurization?

[caseymac91]

I keep having an issue with over carbonated bottles. I use Pappers bottle pasteurizing method, but it's like the yeast isn't dying. I just opened a cider in a grolsch bottle and the neck literally blew off, made my ears ring. Just finished releasing pressure on the batch, had a few more explode. My last batch was also over carbing, I just drank it all before it became an issue. I've been dropping six bottles in a pot of 180F water for 10 mins. So I need to figure out how my batches continue to carbonate after bottle pasteurizing.

 

[Yooper]

I keep having an issue with over carbonated bottles. I use Pappers bottle pasteurizing method, but it's like the yeast isn't dying. I just opened a cider in a grolsch bottle and the neck literally blew off, made my ears ring. Just finished releasing pressure on the batch, had a few more explode. My last batch was also over carbing, I just drank it all before it became an issue. I've been dropping six bottles in a pot of 180F water for 10 mins. So I need to figure out how my batches continue to carbonate after bottle pasteurizing.

Maybe the cider isn't reaching 160 degrees inside the bottle?

 

[caseymac91]

Apologies for the way late reply. That may be the case, i'll keep one bottle open and see what the inside temp gets to. I've lost quite a few bottles to heat stress. I got a little ptsd though.... since it happened I switched to sweetening in the glass.