Gunpowder was mixed with the beverage in question. If it ignited, it was considered "proof" that the beverage had a sufficiently high alcohol content.
To show that their moonshine has high alcohol content and is also free of potentially deadly contaminants commonly found in the illegal product, moonshiners sometimes pour some of theirs on a stump and light it. A clear blue flame indicates high proof. Any other colors within the flame indicates that it is contaminated. Why do people buy unpleasant tasting and potentially deadly moonshine? Because legally produced distilled spirits products are very heavily taxed, thus dramatically increasing their cost to the consumer
The term originated in the UK. "Proof spirit" was defined as a spirit or alcohol with a gravity of 12/13 that of water - it got the name because the sailors used to be paid with rum, and they "proved" it had not been watered down by pouring it over gunpowder and testing to see if the gunpowder would still ignite.
the proof is used to tell you how much alcohol is in it. 100 proof is about 50% alcohol so jsut divide the proof by 2 the higer the proof the more alcohol
Alcohol is sold with a number called "alcohol by volume" or ABV. In America, most beer is 3.4%ABV. To figure out the proof, simply double the ABV number. Vodka is generally 40%ABV, so in the United States it would be 80 proof. Other countries may have other standards that alter the proof number.
It means it's 40% alcohol. The proof number is twice the percentage of alcohol. Proof is a system of measuring the alcohol percentage where 200 is 100% alcohol. So 80 proof is 40% pure alcohol by volume.
'Proof' is a term that used to refer to whether or not alcohol - when poured over gunpowder - would ignite. Modern chemistry has made for a different usage of the term: Alcohol is now rated with a 'proof' equal to exactly twice it's alcohol content. Bud Light is 4.2% alcohol by volume in most of the U.S., so it would be 8.4 proof - though beer is rarely rated this way. Many other alcohols, like vodka and whiskey, are rated around 40% alcohol by volume in the bottle, or around 80 proof. Of course, mixing with various sodas, juices, etc. - even melting ice - will dilute this percentage and 'proof' of what you're drinking.
Hydrometers are commonly used to assess or determine actual proof of an alcoholic beverage. One half the proof is the alcohol content. For example, 80 proof whiskey is 40% alcohol. The alcohol conent in blood is measured by analyzing a sample of blood. More commonly, it is estimated (not measured) by using an alcohol breath testing machine, one brand of which is the Breathalyzer.
60 percent alcohol = 120 proof. one percent = two proof. Since this question involves 'proof' which is typically used to measure alcohol in distilled liquor, I need to point out some safety warnings. At 120 proof, this is not something to drink 'straight'. That level and the even higher level of alcohol in 'Everclear' (190 proof) can actually 'burn' your skin by leaching water out of the skin cells. It is also flammable, some liquors of this level are used to 'flambe' food dishes.
Gunpowder NEVER WAS used to make guns.
They used gunpowder for fireworks and weapons.
I believe gunpowder may be used in fireworks
Gunpowder can be used to make a bomb. So unless you are licensed to be in possession of gunpowder, owning gunpowder is illegal.
"Alcoholic proof is a measure of how much alcohol (i.e., ethanol) is contained in an alcoholic beverage. The measure is commonly used in the United States, where it is defined as twice the percentage of alcohol by volume."Source: http://en.wikipedia.org/wiki/Alcoholic_proof