2007-01-31 07:39:23 · 5 answers · asked by Anonymous in Food & Drink ➔ Beer, Wine & Spirits
Thanks for the answers...does anyone know what these formulas are?
2007-01-31 07:55:37 · update #1
It depends on what beverage you're measuring.
If it's beer or wine, there are two methods. The first is used by the brewer/winemaker. You measure the density of the liquid you're fermeting (for beer, it's wort...for wine, it's must). After it's done fermenting, you measure the beer or wine's density. That change is directly proportional to the amount of sugars that have been converted to alcohol during fermentation.
If it's already beer or wine and no initial pre-fermentation measurement was taken, this method will not work. What is done in this instance is that a sample is basically distilled in a lab and then the amount of alcohol can be compared to the amount of remaining liquid and the percentage is derived from that...generally not done by the home brewer, but for commercial breweries for tax purposes.
If it's spirits, you simply measure the spirit's density. Because there is essentially nothing in it but alcohol and water (the color and flavor is negligible for this measurement) then all you have to use is a hydrometer calibrated for alcohol (also called an alcoholmeter).
2007-02-01 16:45:18 · answer #1 · answered by Trid 6 · 1⤊ 0⤋
I don't know of a commercial device to do it to a purchased beverage, but I know how to tell if you brew your own wine/beer/cider.
You use a device called a hydrometer to measure the specific gravity before and after fermentation and plug the findings into a formula to get the alcohol %.
2007-01-31 07:50:26 · answer #2 · answered by Dennis R 2 · 0⤊ 0⤋
I'm a homebrewer and I know how to determine the alcohol content using a hydrometer to determine Specific Gravity (SG) and a mathematical formula that includes the Original Gravity (OG) of the wort and the Terminal Gravity (TG) of the beer before bottling. I don't know how to determine it with just the TG.
2007-01-31 07:51:37 · answer #3 · answered by Wuher B 1 · 0⤊ 0⤋
I am going to assume you are making beer? The device is called a hydrometer. They are inexpensive and you can get them online or at a brewing supply place.
2007-01-31 07:49:48 · answer #4 · answered by Lin B 1 · 0⤊ 0⤋
Everclear is approximately a hundred and eighty data (ninety% alcohol), yet no longer accessible in each state - with stable reason. Bacardi 151 is accessible maximum everywhere (75% alcohol). while you are going to drink - do no longer force!
2016-12-16 17:48:24 · answer #5 · answered by dricketts 4 · 0⤊ 0⤋