I'm working on my sixth or seventh brew and have been using plastic bottles to begin with. In talking with a customer at work (he came in with a Brooklyn Brewery T-shirt on so it wasn't hard to start up a conversation) he said he had bottles of their Imperial Stout aging for about 10 yrs. He said if beers have yeast in the bottle they will continue to age for years saying this is how craft brewers got around NC's ABV laws in the 90s and 2000s. That got me to thinking I would take a few beers from each batch and save them as long as possible, in my 60 to 65 degree crawl space, before the urge overcame me to drink them. So I have 2 questions, is it better/safer to bottle in glass if I want to keep them for a long time and what are the pros and cons of plastic bottling.