I poured the wort on a yeast cake in a keg that was sealed for about 2 or 3 weeks. When I cracked the seal on the keg, the keg let out a ton of gas and the smell was pretty strong inside. I just assumed the smell was from the hop trub inside sitting for a while. I tasted the yeast and it tasted like yeast so I just went ahead. Anyway, after about a day there was nothing, so I pitched 2 packets of us 05 and it started up fine the following day. So I'm just wondering if this has happened to others and if the beer ended up o.k. after that.