Make Beer At Home

Total soluble nitrogen A measure of the dissolved protein in wort.

Trigeminal sense Sensation of pain detected by the trigeminal nerve.

Trub Insoluble material emerging from wort on heating and cooling.

Tunnel pasteurization Pasteurization of small-pack beer by passage through a heated chamber.

Ultrafiltration Filtering out of material at the molecular level by passage through very fine membranes.

Viability Measure of how alive something is.

Vicinal diketones Butterscotch-flavored compounds formed during brewery fermentation.

Vigor A measure of the strength of growth of the barley embryo during germination.

Viscosity A measure of how much a liquid resists flow.

Vitality A measure of the healthiness of a living yeast.

Volatile A molecule in beer that contributes to aroma and is easily driven off.

Vorlauf Recycling of the first wort runnings from a lauter tun in order to ensure "bright" wort.

Water sensitivity Tendency of a barley's germination to be suppressed by the presence of excess water.

Weak wort recycling Use of the weaker worts from the end of wort separation to mash in the next mash.

Whirlpool Vessel for separating trub from boiled wort.

Wort Fermentation feedstock produced in the brewery.

Wort separation Act of separating sweet wort from spent grains.

Xerogel Colloidal stabilizing agent (similar to hydrogel) made from silica.

Yeast Living eukaryotic organism capable of alcoholic fermentations.

Yeast food Source of amino acids and vitamins sometimes used in brewery fermentations.

Zentner Unit of hop mass (50 kilograms).