Water MOC¶
Water constitutes 98–99% of brewed coffee, making its chemical composition one of the most significant variables in extraction and flavour development. Mineral content — particularly magnesium, calcium, and bicarbonates — affects how compounds are extracted and how flavours are perceived; the SCA defines an optimal water window for brewing. This MOC maps water chemistry, quality standards, temperature, and the equipment and treatment systems that manage water for coffee.
Deep Dives¶
| Article | What it covers |
|---|---|
| Water Composition | Mineral content, TDS, pH, and dissolved substances |
| Water Chemistry Basics | Fundamentals of water chemistry as applied to coffee |
| Coffee - Water Chemistry | How water chemistry interacts with extraction chemistry |
| Coffee and Water for Brewing | Practical guide to water selection and preparation for brewing |
| Water Hardness | Calcium and magnesium concentration and their effects |
| Water Quality | Overall water suitability assessment for coffee brewing |
| Water Treatment | Filtration, softening, and mineral adjustment methods |
Water Chemistry¶
Composition and parameters: Water Composition | Water Chemistry Basics | Water Hardness | Water Softness | Water Quality | Water Quality 1
Measurement: TDS and Extraction Yield | Water Activity
Water in Brewing¶
Temperature: Water Temperature | Water Temperature 1 | Brew Temperature Control
Distribution and ratio: Water Distribution | Coffee-to-Water Ratio | Water-to-Coffee Ratio
Extraction relationship: Coffee - Water Chemistry | Coffee and Water for Brewing
Equipment and Treatment¶
Treatment systems: Water Treatment | Water Reservoir
Related MOCs¶
- Water in Coffee MOC — water's role specifically in the coffee brewing context
- Coffee Chemistry MOC — the chemistry of extraction including water's role
- Brewing Fundamentals MOC — water as a brewing variable
- Coffee Equipment MOC — water filtration and treatment equipment
Essential Resources¶
Books: Water for Coffee (Maxwell Colonna-Dashwood and Christopher Hendon) · The Coffee Brewing Handbook (SCA)
Online: SCA Water Quality Standards · World Coffee Research water guidelines · Barista Hustle water guide
Part of Coffeepedia — The Coffee Knowledge Vault