Brain

Brew Water Recipe

2 min read

Glossary

  • ppm refers to parts-per-million and is generally used to describe the concentration of some component within a unit of brew water
  • KH is often referred to as the Carbonate Hardness, as it has to do with the amount of Bi-Carbonates present in the water. It is the main component acting as a buffering agent for buffering acidity.
  • GH is often referred to as the General Hardness. It is the thing most people mean, when saying a particular water is hard. It is also the main cause of scale buildup.

Concentrates

To produce my water, I first create two concentrates.

This ensures I can accurately weigh in my minerals without the need of a laboratory-grade precision scale. My scale has 0.1g precision, so the more minerals I need to weigh in, the lower the impact of slight measuring errors are.

These concentrates also have the benefit to be almost precisely at 1000 ppm. This enables quick and easy calculation of the KH ppm and GH ppm in the resulting brew water.

For example: 50g of the KH concentrate within 1L of distilled water (50g concentrate, 950g distilled water) would result in 50 ppm KH within the brew water.

Buffer Concentrate (KH)

Add

  • 2g of Potassium bicarbonate (KHCO3)

to

  • 1L of Distilled Water (H2O)

Hardness Concentrate (GH)

Add

  • 2.45g of Magnesium Sulfate heptahydrate (MgSO4 * 7 H20), commonly referred to as Epsom Salt

to

  • 1L of Distilled Water (H2O)

Brew Water

My brew water aims to be at around

  • 20 ppm KH
  • 20 ppm GH

1L

If I need to prepare some brew water in a pinch, I

5L

To reduce workload, I often buy 5L jugs of distilled water and directly mix my concentrates into there.

NOTE

This assumes the jugs are accurately filled by the producer!

Graph View

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