Homebrewing [A] hydrometer, to a brewer is as essential as a compass to an explorer. Without it, we would be lost among the waves of wort, only to guess by the stars 21 Aug 2025 Theresa Schirner from Mirror Image Brewing, quoted in the July/August 2025 issue of Zymurgy magazine from the American Homebrewers Association. Cheers to Theresa, a cognoscente of the brewing world, for…