Killed the yeast?
I opened a bag of SAF Red instant yeast two weeks ago. Divided it into two vacuum-sealed bags, and stashed it into the freezer.
Then I read Maggie Glezer's book. She said that freezing damages the yeast, while refrigerating will preserve it for only 3 to 4 months. Still, many of you have frozen yeast successfully.
My yeast may not have survived. Last night I started a poolish that was mixed and immediately refrigerated overnight. Unlike the other times I made this recipe, the poolish was not ready in the morning. Sank like a stone when I tried the float test.Was it the vacuum that hurt the yeast? Janet