Originally Posted by de5m0mike
I just tried this today with my oven, I put a bunch of bottles of cider in with the oven off. Turned it on and let it come up to 170º. 170º is the minimum for my oven. Once temp was reached I set the timer for 25 min. About 12 min in I started hearing a hissing noise coming from the oven. I shut it off and opened the door to let them cool. After letting them cool I determined that half of the bottles were fizzing and leaking air. One bottle was actually leaking cider. Is this normal, or is it because my oven was too hot?
I believe so. I had a similar problem when my water got up to 215* (Ooops!)
I have had some good luck with an alternate but similar method to Pappers. I plug my sink's drain, and I lay out the bottles. I can get about 18 bottles in at a time. I then run some hot water over them (my hot water heater puts out 130*) meanwhile, I have two large pots on the stove heating to 200*. I then take the 200* water off of the stove, and slowly poor it into the sink. I let it sit for 12 minutes just to be safe. I then use my tongs to pull the drain on the sink, and I let the bottles sit for 2 minutes or so before moving them out of the sink to cool.
I have done a few batches like that, and it has worked out well so far. I even pasteurized some still cider (half batch still, half sparkling) just to verify that this method was indeed working as anticipated. So far so good. The carbonation levels have not changed, and I havent had bottle bombs at all.