Nothing stupid about that... A hydrometer basically measures the amount of sugars present in your beer. When you initially brew your beer and get it into the primary, you'll want to take a hydrometer reading. This will give you a reading as to how much sugars are in your beer and will also give you an estimate as to how much alcohol you may have in the beer when it is finished.
You should also take a gravity reading when you're done fermenting. The gravity reading will acutally tell you when you're beer is finished. You can then take the OG and FG and calculate exactly how much alcohol is present in your beer. Although it is not 100% necessary for you to take hydro readings, it will allow you to know when to bottle and will also let you know what your ABV% is which is always a good thing.
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"Brewers enjoy working to make beer as much as drinking beer instead of working."
-Harold Rudolph
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Hydrometer?
Linear Mode
