How We Test Mushroom Coffee
Updated
Step 1 — Buy at retail
Every product is purchased the way you would buy it: from the brand's site or Amazon, at the listed one-time price. Subscription discounts are noted but the one-time price is what we use for price per serving, because it is the price you actually see.
Step 2 — Drink it for two weeks
Each coffee is prepared per the label instructions (hot water, no milk or sweetener for the taste score) and drunk daily for at least 14 days. Taste notes are recorded on days 1, 7 and 14.
Step 3 — Score six criteria
| Criterion | What earns a 5 | What earns a 1 |
|---|---|---|
| Taste & drinkability | Indistinguishable from a good medium-roast instant | Bitter, gritty, or needs masking |
| Ingredient quality | Organic, fruiting body, no fillers or sweeteners | Mycelium-on-grain, added sugar, "natural flavors" |
| Label transparency | Per-species mg, part used, beta-glucan %, extraction method all stated | Proprietary blend total only |
| Price per serving | Under $1.00 | Over $2.00 |
| Third-party testing | Batch COAs published for heavy metals and contaminants | No testing claim |
| Mushroom dosage | Named species at or near the study dose | Under 10% of the study dose or undisclosed |
The overall score is the unweighted mean. We publish all six so you can re-weight for what matters to you.
Step 4 — Label versus research
For each mushroom in the blend we list the label dose next to the dose used in the named human studies (see each mushroom page for the sources). This is the check most reviews skip, and it is the one that separates a real dose from a sprinkle.
Medical review
Health-related pages are checked by a named clinician before they publish — see our medical review team and how to verify their credentials.
What we don't do
We don't lab-test products ourselves — yet. We rely on published certificates of analysis, and we say so when a brand doesn't publish one. We don't test effects on cognition or energy; the studies that exist ran for weeks at doses coffee can't deliver, and we won't pretend a two-week drinking test can measure that.
Corrections
Found an error? Tell us. Corrections are logged on the affected page with the date.