Craft Hard Cider: Recipes, Tips, and Ideas for Making & Enjoying Hard Cider
Yeast Regulation: Upregulating and Downregulating Yeast are single cell organisms that are seeking to survive and thrive in whatever environment they find themselves. As a single cell organism, we might be inclined to think of them as simple but, that would be a mistake. Yeast have a vast amount of processes they perform to live … Continue reading Cider Words: Yeast Regulation
Yeast Survival Factors: The Impact to Cider Fermentation Yeast Survival Factors are also commonly referred to as oxygen substitutes(1) or anaerobic growth factors(2). These are compounds that ensure yeast viability under stress and ultimately, the survival of the yeast. The compounds include sterols, fatty acids, and peptides. You might be thinking that Yeast Survival Factors … Continue reading Cider Words: Yeast Survival Factors
As cider makers, we tend to think of yeast as our partner in producing wonderful hard ciders. We might inoculate with commercial strains or let the natural microflora go to work. Either option, if you are like me, you associate yeast with fermentation and the ethanol it produces. But, yeast don’t care about producing ethanol … Continue reading How Yeast Reproduce
Budding versus Sporulative Most yeast cells are capable of reproducing asexually, a process called mitosis, and sexually, a process called meiosis. The most common form of asexual reproduction for fermenting yeast, especially Saccharomyces cerevisiae, is budding. Asexual reproduction is most common when resources are abundant. Sexual reproduction is generally the process yeast pursue in times … Continue reading Cider Words: Mitosis versus Meiosis
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
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