bottom yeast

American  

noun

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

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Etymology

Origin of bottom yeast

First recorded in 1905–10

Example Sentences

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

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

From Project Gutenberg

The instrument revealed a number of much smaller forms of fungi, similar to those of young yeast, and some which were excessively large, a variety never found in bottom yeast.

From Project Gutenberg