Canadian whisky a small amount of rye grain. Historically, in Canada, whisky that had some rye grain added to the mash bill to give it more flavour came to be called "rye". The regulations under Canada's "Food and Drugs Act" stipulate the minimum conditions that must be met in order to label a product as "Canadian whisky" or "Canadian Rye Whisky" (or "Rye Whisky") — these are also upheld internationally through geographical indication agreements. These regulations state that whisky must ""be mashed, distilled and aged in Canada"”, ""be aged in small wood for not less than three years"", ""contain not less than
Whisky identified 40 different phenolic compounds. The coumarin scopoletin is present in whisky, with the highest level reported in Bourbon whiskey. In an experiment, whiskey aged 3 years in orbit on the International Space Station tasted and measured significantly different from similar test subjects in gravity on Earth. Particularly, wood extractives were more present in the space samples. Depending on the local regulations, additional flavourings and colouring compounds may be added to the whisky. Canadian whisky may contain caramel and flavouring in addition to the distilled mash spirits. Scotch whisky may contain added (E150A) caramel colouring, but no other additives. The