If you're new to ordering magic mushrooms online, the weight system trips most people up on day one. An eighth, a quarter, an ounce — these terms came over from the cannabis world, but the doses they map to are wildly different for psilocybin. Here's the plain-English breakdown of what each weight gets you, what it costs, and which one is right for your trip.
The shroom weight cheat sheet
Every weight you'll see on the Metro Mush menu maps to the same metric grams under the hood:
- 1 gram — a single small-to-moderate dose. Good for first-timers or as a gentle reset.
- An eighth (3.5g) — the most-ordered unit. Covers one strong solo trip or two beginner-friendly doses.
- A quarter (7g) — two solid trips, or four mellow ones, or one heroic dose for experienced users.
- A half ounce (14g) — covers a group, a season, or a serious personal exploration plan.
- An ounce (28g) — bulk. Microdose for months, or share with friends across multiple sessions.
- 21 grams — three-quarters of an ounce. Sometimes priced between a half and a full oz; gives you 5–6 strong trips or a long microdose stash.
21 grams vs an eighth — by the numbers
An eighth is 3.5 grams. 21 grams is six eighths. So if a 3.5g pack runs around $35, six of them at retail would be $210. Buying 21 grams in one go almost always saves you 30–50% per gram — that's the entire reason bulk weights exist.
| Weight | Grams | Typical doses | Best for |
|---|---|---|---|
| Gram | 1 | 1 mild | First-timers, microdose stack |
| Eighth | 3.5 | 1 strong / 2 mild | A single solo trip |
| Quarter | 7 | 2 strong | A couple, two sessions |
| 21 grams | 21 | 5–6 strong | Bulk personal stash |
| Ounce | 28 | 7–8 strong | True bulk, longest shelf life |
How many grams should you actually take?
Dose isn't about the weight you bought — it's about what you swallow in one sitting. The Metro Mush dosage chart looks like this:
- 0.1–0.3g — microdose. No visuals, subtle mood and focus lift.
- 0.5–1g — museum dose. Body warmth, mild visual edge, social-friendly.
- 1.5–2.5g — classic recreational. Visual patterns, emotional openness, 4–6 hour trip.
- 3–4g — strong. Deep introspection, possible ego softening, plan a quiet space.
- 5g+ — heroic. Reserved for experienced users with a sober trip-sitter present.
Storage tips so 21 grams stays fresh
Bulk weights only save money if the shrooms stay potent. Vacuum-seal each gram or eighth separately, drop in a silica or food-grade desiccant, and store in a cool, dark cupboard. Properly stored cubensis stays potent for 12+ months.
Ready to order?
Browse the Metro Mush shop for fresh-batched Bluey Vuitton, Jedi Mind Fuck, Shakti, Koh Samui Super Strain and more — all in 3.5g through 28g weights, with discreet tracked USPS shipping nationwide.