Pertaining to any of numerous edible yeasts that produce, e.g., ale, and whose respective fermenting actions appear to be at the top surface of the wort.

plural of bottom fermentation

A device, used mainly in homebrewing, that allows carbon dioxide to escape from a fermenter without allowing air to enter

(brewing) Alcoholic fermentation during which the yeast cells are carried to the top of the fermenting liquid.

(brewing) A slow alcoholic fermentation process carried out at low temperatures during which the yeast sinks to the bottom of the liquid. Used in brewing lager-type beers.

(microbiology) Any of a taxonomically heterogeneous group of bacteria of the phylum Pseudomonadota that cannot catabolize glucose, and are thus unable to ferment.

Third-person singular simple present indicative form of re-ferment

Alternative spelling of referment

simple past tense and past participle of re-ferment

present participle of re-ferment