bottom yeast

noun

1. a yeast whose cells, in the manufacture of wine and lager beer, fall to the bottom as a sediment.

Word History and Origins

Origin of bottom yeast¹

First recorded in 1905–10

Example Sentences

Microscopic examination of the yeast, however, showed the same to be bottom yeast.

From Project Gutenberg

Of the higher sugars raffinose is fermented by juice from bottom yeast, but more slowly than cane sugar or maltose.

From Project Gutenberg

It has not, however, been possible to transform a typical top yeast into a permanent typical bottom yeast.

From Project Gutenberg

Sometimes a bottom yeast may for a time exhibit signs of a top fermentation.

From Project Gutenberg