Brew Lab · Calculators I + II
Sulfate / Chloride Comparator
Compare sulfate and chloride concentrations while refusing to turn their ratio into a literal sensory prediction.
Boundary: No ion target or mineral dose is prescribed.
Static result contract
Worked example
A production ICU form can progressively enhance this calculator later. The method and representative result remain understandable with no JavaScript.
- SO₄:Cl ratio
- 2.00
- Combined concentration
- 225 mg/L
- Boundary
- Ratio ≠ sensory score
Method
Formula is part of the interface
BEU does not hide the calculation behind a single result number.
| Method | Formula | Interpretation boundary |
|---|---|---|
| Sulfate-to-chloride ratio | ratio = sulfate_mg/L / chloride_mg/L | Descriptive comparison only; absolute concentrations matter. |
Input contract
Units and guards
Input guards keep this foundation implementation bounded. They are not style definitions, legal thresholds, or equipment ratings.
| Input | Accepted units / range | Boundary |
|---|---|---|
| Sulfate | unitless | mg/L. |
| Chloride | unitless | mg/L; zero makes the ratio undefined. |
Limits & safety
What the result does not prove
Limitations
- Ratio alone does not predict bitterness, fullness, balance, or quality.
- Very low total ion concentrations make ratio-centric interpretation especially weak.
Safety / responsible-use notes
- No ion target or mineral dose is prescribed.
Methodology sources
Follow the method back to its references
External formulas and technical claims are sourced separately from Beer Universe's own algebra, unit handling, and interface policy.
- Brewer's Friend Water Chemistry reference
industry technical · brewing water ion reporting · bicarbonate and alkalinity conversion · water-profile comparison - BEU018 Brew Lab Calculators II methodology contract
beu original · BEU calculator guards · BEU interpretation boundaries · BEU result-route policy