Alcohol proof and percentage. What’s the difference and purpose?

Question

Alcohol proof and percentage. What’s the difference and purpose?

In: 4

Answer 1

Proof is the percentage of the alcohol doubled. 100 proof is 50 percent alcohol. I’m not entirely sure of the reason why it’s measured in proof though honestly.

Answer 2

Proof is the percentage of the alcohol doubled. 100 proof is 50 percent alcohol. I’m not entirely sure of the reason why it’s measured in proof though honestly.