Do you have a packet of yeast where the expiration date has passed? Maybe you harvested some yeast from last season’s batch of hard cider but it has been sitting in the refrigerator ever since. Is this yeast dead and unusable or could it still be viable? The quick answer is that you can still … Continue reading Cider Question: Can I use expired yeast?
Tag: autophagy
Fermentation Stages of Yeast
It is common to talk about fermentation in stages and often there are three stages identified. If you are talking about a wild or natural fermentation, those stages might be how initially non-Saccharomyces strains start the fermentation. This is followed by Saccharomyces yeast that complete fermentation. The final stage is maturation where Brettanomyces strains often … Continue reading Fermentation Stages of Yeast
Cider Words: Autophagy
Autophagy: The process where yeast begin consuming themselves in order to stay alive during times of starvation. Have you ever heard of autophagy before? No? Don’t worry, I had never heard about it until I read chapter two of Molecular Wine Microbiology(1). Autophagy is strongly linked to autolysis, which I covered in an earlier Mālus … Continue reading Cider Words: Autophagy


