Classifications of Gin

London Dry Gin is the dominant English style of Gin. As a style it lends itself particularly well to mixing. London Dry Gin is the dominant Gin style in the United Kingdom, former British colonies, the United States, and Spain.

Plymouth Gin is relatively full-bodied (when compared to London Dry Gin). It is clear, slightly fruity, and very aromatic. Originally the local Gin style of the English Channel port of Plymouth, modern Plymouth Gin is nowadays made only by one distillery in Plymouth, Coates & Co., which also controls the right to the term Plymouth Gin.

Old Tom Gin is the last remaining example of the original lightly sweetened gins that were so popular in 18th-century England. The name comes from what may be the first example of a beverage vending machine. In the 1700s some pubs in England would have a wooden plaque shaped like a black cat (an "Old Tom") mounted on the outside wall. Thirsty passersby would deposit a penny in the cat's mouth and place their lips around a small tube between the cat's paws. The bartender inside would then pour a shot of Gin through the tube and into the customer's waiting mouth. Until fairly recently limited quantities of Old Tom-style Gin were still being made by a few British distillers, but they were, at best, curiosity items.

Genever or Hollands is the Dutch style of Gin. Genever is distilled from a malted grain mash similar to that used for whisky. Oude ("old") Genever is the original style. It is straw-hued, relatively sweet and aromatic. Jonge ("young") Genever has a drier palate and lighter body. Some genevers are aged for one to three years in oak casks. Genevers tend to be lower proof than English gins (72-80 proof or 36-40% ABV is typical). They are usually served straight up and chilled. The classic accompaniment to a shot of Genever is a dried green herring. Genever is traditionally sold in a cylindrical stoneware crock. Genever-style gins are produced in Holland, Belgium, and Germany.

Source: Tastings.com