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Used to increase the Calcium and Sulfate ion concentration in brewing water, making hop bitterness and dryness more readily perceivable. To read more on the subject, please go visit and donate to Martin Brungard and use his wonderful spreadsheet, Bru'n Water. He helped write the book on brewing water chemistry. Bru'n Water Knowledge Page
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🇺🇸 Ship from USA · On Agora since 2026
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