There are numerous botanicals used in making a great gin. You will find four in almost all of them with Juniper Berries being mandatory.
The big gin companies source juniper berries from all over the world and take special care in making sure they have enough supply. Often, they will keep enough inventory for two years just in case they encounter a poor harvest. They do rely on perfect weather conditions much like grapes for making an excellent wine.
Coriander Seeds are the second most important and add a spice or citrus note depending on where they are sourced.
Angelica Root provides a woody note and Orris root will hold all the botanicals together in perfect harmony.
Citrus peel, and an array of spices are also to be found. Most gins have at least 10 botanicals in their recipes.
I had the privilege over the summer months to promote both The House of Bombay gins and Citadelle from France.
Both Bombay Sapphire and Citadelle are perfect for the Ultimate G & T.
The Ultimate G & T Recipe:
1 ½ to 2 ounces of quality gin
Fresh Ice Cubes
3 to 4 ounces of Fever Tree Tonic