1. Lock in the water volumes first
Mash thickness, sparge water, boiloff, and losses decide how much water needs treatment. If volume assumptions change later, mineral additions and acid amounts may need to change too.
- Mash water volume
- Sparge water volume
- Boiloff and kettle losses
2. Start from a real water profile
Use your water report when you have one. If the source water is unknown or high in alkalinity, RO or distilled water can make the chemistry easier to control.
- Calcium, sulfate, chloride, sodium, magnesium, bicarbonate
- Dilution percentage if blending water
- Target profile that fits the beer
3. Adjust minerals with the beer in mind
Minerals affect more than pH. Sulfate can sharpen hop bitterness, chloride can round malt body, and calcium supports mash and yeast health.
- Use small mineral changes first
- Check mash pH estimate after each major adjustment
- Measure actual mash pH when precision matters