Urine tests can determine whether you have consumed alcohol within the last 24 hours. Alcohol has a relatively short life span in the body, but a urine test can detect alcohol long after its effects ...
Proof is a measure of the alcohol content of a beverage. In the U.S., policymakers define proof as twice the percentage of alcohol by volume (ABV). For example, a drink with 40% ABV is 80 proof.
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