This tool estimates resulting water hardness after mineral salts addition. Calculation was inspired by book Pivařka.

Notes:

• This tool is available for registered users only.
• Choose units.
• Enter source water hardness and its volume.
• Enter weight of mineral salts.
  • Gypsum can accentuate hop flavor.
  • Calcium Chloride emphasises malt flavor.
  • To preserve sulphate to chloride ratio add Gypsum and Calcium Chloride in 46% to 54% ratio.