Copius
Baker’s yeast, drawn for Copius

Baker’s yeast

Levure de boulanger

Latin nameSaccharomyces cerevisiae
FamilyTexture agents
OriginWild, everywhere
Season (France)All year
FlavourEarthy · Toasty · Mild · Umami
Typical price (France)4–10 €/kg

What it is

Bread rose for thousands of years before anyone knew why. Pasteur identified the organism in the 1850s, and only then did it become possible to buy the living thing in a packet rather than keeping a piece of yesterday's dough alive.

In the kitchen

Never let it touch salt directly in the bowl — salt kills it on contact. Put the flour between them.

Goes with

T65 bread flour Salt Butter Honey Rye flour Olive oil Cream T55 flour

Same species

Nutritional yeast Yeast extract

Also used with

Barley malt syrup Fava bean flour Gruau flour Diastatic malt powder T110 flour T80 flour

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