How to know when to start to bottle?

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You really need a hydrometer. It will be one of the best brew gear investments you have.

Hydrometers You need one, here is how to use one

Hydrometers are based on Archimedes Principal. “Archimedes’ principle indicates that the upward buoyant force that is exerted on a body immersed in a fluid, whether fully or partially submerged, is equal to the weight of the fluid that the body displaces and it acts in the upward direction at the center of mass of the displaced fluid.” What that means to us as brewers is when the sweet wort is measured with your hydrometer the thicker it is, the higher your hydrometer floats. The more malt extr…