I bought a pack of Omega OYL-114 with a mfg date of May 21, 2020. I made a starter this morning. When I smelled the yeast pack, after I pitched the yeast in the starter, it has a slight sour smell. Does anyone have any experience with this? I don't want to ruin a batch of beer with a bad pack of yeast.
Sent from my Pixel 2 XL using Tapatalk