Two different questions hide in this one — and here are both answers: a magic mushroom chocolate bar keeps its potency for roughly 6–12 months stored cool, dark and sealed, and the trip itself lasts about 4–6 hours after eating it.
Shelf life: how long a bar stays good
Chocolate is actually an excellent preservation medium — it seals the ground mushroom away from oxygen and moisture, the two things that degrade psilocybin fastest. For maximum life:
- Keep it cool — under 70°F. A pantry beats a windowsill; summer car interiors are chocolate killers.
- Keep it dark — light degrades both chocolate and psilocybin.
- Keep it sealed — original wrapper plus a zip bag after opening.
- Fridge is fine (airtight container to prevent condensation); freezing works for long-term but can affect texture.
White bloom on chocolate (fat or sugar bloom) looks alarming but is harmless. Actual spoilage — off smell, sour taste — means toss it.
Effects: how long the trip lasts
- Onset: 30–60 minutes (faster on an empty stomach)
- Peak: hours 1–3
- Total: 4–6 hours, with a gentle landing
Our bars contain 4g of mushrooms across 12 squares — about 0.33g each — so one square is a solid microdose-plus, three squares approaches a moderate trip, and a whole bar is a serious journey. Start low; you can always eat another square, but you can't un-eat one. Still deciding between formats? Here's how bars stack up against gummies.