Pimm's is a brand of alcoholic beverages now owned by Diageo. Its most popular product is Pimm's No.1, a gin-based beverage that can be served both on ice or in cocktails. The recipe of Pimm's No.1 is secret; it has a dark tea colour with a reddish tint, and tastes subtly of spice and citrus fruit.Pimm's is commonest in Britain, particularly Southern England. It is one of the two staple drinks at the Henley Royal Regatta and the Glyndebourne opera festival, the other being champagne.Pimm's No.1 is the essential ingredient in the Pimm's Cup, which mixes one part Pimm's No.1 with two parts lemonade or lemon soda (sometimes ginger ale or Indian tonic water), ice cubes, borage leaves (nowadays a wedge of cucumber is usually substituted for this ingredient), mint leaves and slices of lemon, orange and strawberry.There are five other Pimm's products besides No.1. The essential difference among them is the base alcohol used to produce them:Pimm's No.1 Cup is based on gin. It is 25% alcohol by volume.Pimm's No.2 Cup was based on whisky. Currently phased out.Pimm's No.3 Cup is based on brandy. Phased out, but a version infused with spices and orange peel marketed as Pimm's Winter Cup is now seasonally available.Pimm's No.4 Cup was based on rum. Currently phased out.Pimm's No.5 Cup was based on rye. Currently phased out.Pimm's No.6 Cup is based on vodka. It is still produced, but in small quantities.Pimm's No.1 can also be purchased as a pre-mixed fortified lemonade (Pimm's & Lemonade) in 250 mL cans or 1-litre bottles.