A pale, beige block of living culture that is as fragile as it is powerful. Unlike the dormant granules of dried yeast found in cupboards, this is a highly perishable ingredient that demands refrigeration and urgent use. It offers a vigorous, complex rise and a superior, tender crumb, but it is an ephemeral ingredient—a fleeting spark of life that must be captured quickly to create truly artisanal breads.
Culinary Notes
Highly perishable with a short window of vitality; it must be stored in the refrigerator and typically lasts only one to two weeks before losing its potency.
Best used when crumbled directly into liquids at body temperature; high heat will kill the living cells, while cold will simply keep them dormant.
Avoid direct contact with salt during the weighing process, as the salt will dehydrate the yeast cells and kill them before they have a chance to work.
Freezing is possible and can extend its life for a few months, but it must be wrapped airtight to prevent freezer burn, which damages the cell structure.
Health & Folklore
A powerhouse of B-complex vitamins, particularly B1 (thiamine) and B2 (riboflavin), essential for converting food into energy.
Contains a significant amount of complete protein and essential amino acids, making it a nutrient-dense booster in traditional diets.
Rich in immune-supporting minerals such as selenium and zinc.