Johnnyboy1012
Well-Known Member
Hey guys, I had a vial of WLP 830 German Lager Yeast that was a month out of date and a new vial of the same yeast. Was going to make a big starter and as I am about to pitch into my flask I decided to compare the smell of the two vials. The old out of date yeast smelled rotten compared to the new yeast. I know lager yeast can smell like rotten eggs but it just smelled bad. When I shook the two side by side there was a lot more CO2 bubbles in the newer vial. Anyway, I didn't pitch the old vial because of its smell and color and discarded it. What would you have done? Old yeast on the right and newer yeast on the left.