tags: [] - coffee/brewing - coffee/brewing/water aliases: - Pour over water - V60 water - Pour over water parameters

Water for Pour Over¶

Tags: #coffee/brewing #coffee/brewing/water Aliases: Pour over water, V60 water, Pour over water parameters Related: Water in Coffee MOC | Filter Coffee Water | Water Standards | Alkalinity | Ideal Water for Coffee Status: ✅ Complete

Overview¶

Pour over brewing — including the V60, Chemex, Kalita Wave, Origami, and similar percolation methods — uses the same SCA water parameters as general filter coffee, with a slight tendency to benefit from the lower end of the alkalinity range (20–40 mg/L as CaCO₃ rather than the upper 70 mg/L). This is because pour over brewing often emphasises clarity, brightness, and origin character — especially with light roast specialty coffees — and even moderate alkalinity can noticeably suppress the delicate fruit and floral notes that these coffees offer. Pour over brewers have no boiler or heating element (using an external kettle), so scale concerns are limited to the kettle itself.

Water and Pour Over Flavour¶

Brightness and acidity: Pour over methods, particularly with perforated filter designs (V60, Chemex), produce very clean cups that rely on the coffee's intrinsic acidity and aromatic character. Water alkalinity directly determines how much of this character is preserved. At 40 mg/L as CaCO₃ (SCA target), mild buffering occurs without significant acid suppression — the reference point. At 20–30 mg/L, the maximum brightness and fruit expression is achieved; many competition-level pour over preparations use water at or below this alkalinity.

Body and mouthfeel: Moderate hardness (40–80 mg/L as CaCO₃) from calcium and magnesium provides adequate body. Very soft water (below 20 mg/L total hardness) can produce thin, watery cups even with excellent coffee.

Clarity: Pour over's physical filtration through paper (V60, Chemex) or metal (Able Kone) removes fine coffee particles; this clarity means water mineral character is perceived more directly than in immersion methods (French press) where coffee oils and particulates add complexity.

Equipment and Scale¶

Pour over brewing has minimal scale risk in the brewing device itself — the dripper, server, and filter hold no heated water. The kettle, however, is subject to scale: - Gooseneck kettles (Hario Buono, Fellow Stagg, Bonavita) with heating elements accumulate scale in hard water - Kettle scale does not affect coffee flavour directly but can reduce heating efficiency and eventually block internal fittings - Descale the kettle periodically (quarterly in moderate hard water) with citric acid solution

Recommended Parameters¶

Parameter	Recommended for pour over
TDS	100–175 mg/L (slightly below midpoint for clarity and brightness)
Alkalinity	20–50 mg/L as CaCO₃ (favour lower end for light roasts)
Total hardness	40–80 mg/L as CaCO₃
pH	6.5–7.5
Chlorine	0

Key Facts¶

Pour over water parameters follow general SCA filter standards; favour the lower alkalinity range (20–40 mg/L as CaCO₃) for specialty light roast coffees
Alkalinity directly determines preservation of brightness and fruit character — the defining quality of specialty pour over
No boiler; scale risk limited to the kettle heating element; less acute than espresso machine concerns
Very soft water (<20 mg/L total hardness) produces thin cups; moderate hardness (40–80 mg/L as CaCO₃) recommended
Chlorine and chloramine must be removed as for all coffee brewing

References¶

Changelog¶

Date	Change
2026-04-28	Note created

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