| Alpha acid | The main bittering substance; a component of lupulin |
| Beta acid | A component of lupulin |
| Bine | Stem of a hop plant |
| Blight | Infestation of damson-hop aphid |
| Burr | Female hop flower from which the cones later develop |
| Canker | A fungal soil borne disease which attacks hops |
| Cohumulone | One of the Alpha acids |
| Coir yarn | Cordage and string made of coconut fibre |
| Cone | The part of the hop plant that is used in brewing |
| Damson-hop aphid | An insect pest |
| Downy mildew | A fungal disease which attacks hops |
| Dry hopping | The addition of a small quantity of hops to a full cask of beer |
| Dusting | Applying powder fungicides or insecticides to growing hops. |
| Essential oils | Aromatic oils found in lupulin glands |
| Foxy | Term applied to dried hops showing a marked tint of reddish brown due to over maturity, disease or decay |
| Hop extract | An extract of hops containing the useful brewing constituents |
| Hop garden | Kent name for a hop field |
| Hop pellets | Compressed hop powder |
| Hop yard | West Midlands name for a hop field |
| Hopping rate | Proportion of hops used in the brewing process |
| Hop pocket | A sack, approx 6 feet long, in which dried hops are pressed and stored. Contains about 80 kilos. |
| Kettle hop | Hop which is added to the copper or kettle in the early stages of the brewing process |
| Kiln | Building for drying hops in a current of warm air (West Midlands name) |
| Lupulin | The hop’s resin glands at the base of the cone bracts |
| Oast | A building used for the drying and storing of hops (Kent name) |
| Perennial | A plant that will shoot and grow again, year after year |
| Poke | Sack of loosely woven material capable of containing 8 – 10 bushels of green (undried) hops, awaiting drying |
| Powdery mildew | A fungal disease which attacks hops |
| Scuppet | Wooden shovel used for moving dried hops around the oast |
| Sett | Young hop plant propagated for transplanting to its permanent position in a hop garden |
| Spray | A lateral or side branch of a hop plant |
| Stock | Single hop plant |
| Strig | Central stem of hop plant |
| Twiddling | The process of winding or training hop stems around string |
| Verticillium wilt | A fungal soil-borne disease which attacks hops |
| Wirework | A pole system supporting wires and strings up which the hops climb |
| Zentner | 1 Zentner = 50 kilos, 20 Zentners = 1 Tonne |
The more American brewers learn about hop terroir, the more they appreciate the different character British hops express in their beers – whether they are using Old World varieties or ones as fashionable as any from the New World. Authenticity has become a rallying cry for American brewers who understand Old World inspired beers should be made with Old World hops.
Stan Hieronymus, Author ‘For the Love of Hops’