Water and mash calculator hub

Brewing Water Calculators

Plan source water, salts, mash volume, sparge volume, strike temperature, and boiloff in one workflow.

Make water decisions before the kettle is hot

Water affects mash performance, bitterness balance, and final volume. This hub connects the core CaptainBrew water tools so brewers can plan volumes and chemistry together.

Tool Water Chemistry Calculator Target brewing ions, estimate mash pH, and plan mineral additions. Tool Sparge Water Calculator Calculate mash water, sparge water, strike temperature, and brew-day losses. Tool Boiloff Calculator Measure kettle evaporation so pre-boil and final volumes land closer to target. Tool Create a Recipe Use the full recipe builder after volume and water assumptions are dialed in.

Frequently asked questions

Should I plan water chemistry or water volume first?

Start with recipe volume and mash assumptions, then use the water chemistry calculator to plan minerals and mash pH.

What is the difference between sparge water and water chemistry?

Sparge tools handle volumes and strike temperature. Water chemistry tools handle ions, salts, dilution, and pH estimates.

Why measure boiloff?

Boiloff changes final volume and gravity, so measured system losses make both recipe and water planning more accurate.

Can shops embed these water calculators?

Yes. The water, sparge, and boiloff tools are available as embeddable widgets for homebrew shops and content sites.

Give customers water tools while they shop

Add practical calculators that help brewers buy salts, ingredients, and equipment with a complete plan.

See embeddable calculators