Brew Method pH Baselines
How brewing method affects coffee pH. Baseline measurements for drip, espresso, cold brew, French press, and more.
Transparency tier legend
Which brew method ph baselines publish a pH?
5 entries, sorted by transparency tier then pH ascending. Every value shows its source and date.
| Entity | pH | Brew Method | Roast | Transparency | Source |
|---|---|---|---|---|---|
| Drip coffee baseline | 4.8-5.39 | drip | unspecified | Tier 1 | Rao & Fuller 2020 Foods |
| Cold brew baseline | 5-5.75 | cold_brew | unspecified | Tier 1 | Rao & Fuller 2020 Foods |
| Instant coffee baseline | 5.13 | instant | unspecified | Tier 1 | Evaluation of Titratable Acidity and pH Level of Different Coffee Drinks |
| Espresso baseline | 5.52-6.09 | espresso | unspecified | Tier 1 | ACS DOI 10.1021/jf505691u |
| French press baseline | 5.92 | french_press | unspecified | Tier 1 | Gloess et al. 20132013-01-30 |
Matcha is less acidic than coffee -- but it is not alkaline
Brewed matcha is mildly acidic at pH 5.6-6.3 (Najman et al., Molecules (2023)). Brewed coffee sits around pH 4.85-5.1. Because pH is a logarithmic scale, that gap means coffee delivers several times more acid per cup than matcha -- a real difference, even though neither drink is alkaline.
Second lever: caffeine. Matcha contains roughly half the caffeine of a cup of coffee, and its L-theanine content produces a slower, steadier release. For people who experience jitters, crashes, or digestive discomfort from coffee, the combination of lower acidity and lower caffeine load is often the meaningful difference.
Note: this is general information, not medical advice. If you have GERD, acid reflux, or a digestive condition, consult a healthcare provider before changing your diet.