Spirit  

is an alcoholic drink produced by distillation of grains, fruits, vegetables, or sugar, that have already gone through alcoholic fermentation. Other terms for liquor include: spirit drink, distilled beverage or hard liquor. The distillation process concentrates the liquid to increase its alcohol by volume.

Different Spirits : 

1. Whisky – Grain
2. Vodka – Potatoes
3. Rum – Sugar cane 
4. Brandy – Grapes
5. Tequila – Agave 
6. Gin – Any starch as a raw material, Juniper berries is a must go botanical.

Let’s take a example of whisky

 To make spirit we have to follow 2 steps

1. Fermentation :   Fermentation is a metabolic process that produces chemical changes in organic substrates through the action of enzymes. In biochemistry, it is narrowly defined as the extraction of energy from carbohydrates in the absence of oxygen

1. Distillation : Distilling is essentially the process whereby a liquid made of two or more parts is separated into smaller parts of desired purity by the addition and subtraction of heat from the mixture. The vapors/liquids distilled will separate other ingredients that have lower boiling points.