Mushroom Potency Explorer
See how badly dry weight can mislead you when species, chemistry, and batch strength are all moving underneath the number. This is a species-level band, not a lab read on your bag.
Full chapter Chapter 09 • Substance Preparation
Part of Chapter 09. Use the chapter when species, format, or chemistry variability make dry weight a weak proxy.
Mushroom Potency Explorer
Show how much the same dry weight can fool you.
Published species ranges plus the dry-weight guess you entered.
This page cannot know your exact bag, genetics, storage history, or whether the material is mixed.
If this is unfamiliar material, treat it like a fresh calibration problem and use Starting Floor before you get hypnotized by the midpoint.
1.00g is still just a dry-weight guess. The same number can land very differently once species, storage, and mixed material get involved.
Dry weight is just a stand-in. The same gram count can land very differently depending on the species and what actually wound up in the bag.
about 2 mg to 28 mg psilocybin-equivalent
If this is a new species or a new batch, treat it like one. Go back to conservative floors instead of trying to outsmart the spread.
The spread beats the midpoint.
1.00g of Psilocybe cubensis can plausibly land anywhere inside this species-level band. The midpoint is interesting, but the spread is the part that should change your behavior.
This is the species-level span for the same dry-weight guess, not a prediction of what your exact bag contains.
Headline number only. The useful move is to recalibrate, not to split the difference.
New species, new genetics, mixed mushroom parts, or old storage history should all push you back toward a conservative floor.
| Species | Published range | Possible swing | Source |
|---|---|---|---|
| Panaeolus cyanescens Blue Meanie | 0.5% – 3.1% | 6.4x | Gartz (1994) |
| Psilocybe cubensis cubensis varieties | 0.1% – 2.8% | 18.4x | Bigwood & Beug (1982) |
| Psilocybe semilanceata Liberty Cap | 1.0% – 2.6% | 2.6x | Gotvaldová et al. (2022) |
| Psilocybe azurescens Flying Saucer | 1.2% – 2.3% | 2.0x | Stamets & Gartz (1995) |
| Psilocybe cyanescens Wavy Cap | 0.5% – 2.3% | 4.5x | Stamets (1996) |
| Psilocybe tampanensis Philosopher's Stone | 0.3% – 1.0% | 3.0x | Gartz (1994) |
| Psilocybe mexicana Teonanácatl | 0.2% – 0.9% | 5.2x | Heim & Wasson (1958) |
| Gymnopilus luteofolius Big Laughing Gym | 0.1% – 0.4% | 3.4x | Hatfield & Brady (1971) |
Next move
Species data only matters if it lowers your confidence in the dry-weight number. The next move is recalibration, not falling in love with the midpoint.
Storage can move it too.
If the species band already feels wide, old powder, heat, light, oxygen, and rough storage can make the number drift even more.
Storage Drift Read
Read whether time and storage have quietly changed what the batch can do.
A storage-pressure model that combines form, container, temperature, light, humidity, and time into a trust band.
Directional only. This is not a lab assay and it cannot see starting potency, contamination, sloppy prep, or storage mistakes you forgot to log.
If the batch is drifting, treat it like fresh uncertainty instead of trusting the number you remember.
Drift pressure is high enough to force recalibration.
This profile has enough accumulated drift pressure that the remembered number should be treated as suspect and rebuilt carefully.
Trust band = lane fragility x dominant storage pressure, with smaller penalties from the other stressors and a time cost on top. This is a recalibration instrument, not a lab result.
Glass Jar · Room Temp (~72°F) · Dark Storage · Normal
Time and baseline chemistry are doing more work than one obvious storage mistake.
Nothing here is sharply slowing the drift model down.
Meaningful stacked pressure
Trust band = lane fragility x dominant storage pressure, with smaller penalties from the other stressors and a time cost on top. This is a recalibration instrument, not a lab result.
Recalibration lane
Treat the next session like a fresh batch check. Start lower, confirm the read, and only then rebuild the range.
6 months in the setup you picked.
No single red-line factor
The profile is being shaped more by time and baseline chemistry than one obvious storage mistake.
Nothing is strongly protective
If you want more readable long-term storage, temperature, light, and moisture control still need improvement.
Next move
Your storage setup is likely costing potency and predictability. Improve the environment before you assume your old material will behave like it did on day one.
Want the longer reasoning? 09 • Substance Preparation/Volumetric Prep
Turn tiny stock and solvent volume into a measurable dilution.