I made a starter of WLP820 the other day, it was had a month before its expiration date. I got home from work this morning, and there was a smell of bad cheese in the kitchen; I put my nose to the flask, and gagged; hard. never had this problem with this yeast, or any yeast for that matter. sanitation or mishandling on my part was outta the question- I also made a starter of some WLP029 with the same batch of starter wort. I just got back from the brew shop with some S-23 for a backup.
so did this ever happen to any of youse guys? I can only assume bad handling from the supplier to the brewshop; never had this issue from my local.