hist-brewing: hydrometers

-Tevildo. tevildo at hotmail.com
Sun Jan 16 13:39:20 PST 2000

I know that eggs were used as hydrometers for a long while before the modern 
style was invented. By letting an egg float in the mix and seeing how much 
of the egg floated above the water level, it's possible to get a rough 
estimation of the fluid density.     -T.
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