Field Equipment

Digital hygrometer + thermometer

A sub-$20 unit that records min/max values is worth its weight. Analog dial hygrometers drift badly within weeks; skip them.

Wireless probe thermometer

For monitoring sealed containers or fruiting chambers without opening them. Bluetooth models log history to your phone.

Pressure canner, 23-quart or larger

Atmospheric canning is not sufficient for substrate work; you need 15 PSI sustained for at least 90 minutes. A 23-quart body fits roughly a dozen half-pint jars per load.

Isopropyl alcohol, 91% or higher

Surface disinfection for work areas and equipment. Lower concentrations contain too much water to evaporate cleanly, which defeats the point.

Sterile syringes, 10 mL luer lock

Necessary for transferring liquid cultures. The luer-lock fitting prevents accidental separation under pressure and is worth the small premium over slip-tip syringes.

Compact HEPA air purifier

A clean work area dramatically reduces contamination rates. A budget HEPA unit running for 30 minutes before you open a jar is meaningful; a still-air glove box is better if you're serious.

Nitrile gloves, powder-free

Powder-free matters — talc can contaminate substrate. Buy a box; single pairs aren't economical.

Ball half-pint mason jars, wide mouth (12-pack)

Wide mouth matters for extraction. Half-pint is the canonical size for PF-Tek cakes.

Polyester fiber fill

For jar-lid filters — allows gas exchange while blocking contaminants. Any craft-grade polyfill works; no need for specialty product.

Brown rice flour, stoneground

The rice component of PF-Tek substrate. Stoneground binds best; instant or quick-cooking types don't set up correctly.

Horticultural vermiculite, grade #3

Water-retaining substrate additive. Grade #3 (medium) is standard for cultivation work. Avoid vermiculite treated with fertilizers.

Continuous-spray mist bottle

For fruiting-chamber humidity with distilled water. Trigger-pump bottles clog; continuous-mist sprayers don't, and they atomize more finely.

Digital kitchen scale, 0.1g precision

For consistent substrate ratios. Half-gram or whole-gram resolution isn't sufficient when you're working with small quantities of active ingredients.

Rite in the Rain waterproof notebook

For dated observations that don't smear when the chamber is humid. The classic field-science choice; worth every cent of the modest markup.

Space pen or mechanical pencil

Regular ballpoints skip on damp pages; Fisher Space Pens write on wet paper and upside-down. Mechanical pencils are the zero-cost alternative.

Michael Pollan — How to Change Your Mind

Journalism across the second-wave psychedelic renaissance. Accessible, well-reported, a reasonable gateway for skeptical friends or family.

Paul Stamets — Mycelium Running

Mycological ecology at book length. Stamets is a believer but the underlying biology is sound, and the photography is outstanding.

James Fadiman — The Psychedelic Explorer's Guide

The canonical set-and-setting reference. Dated in places but the core framework is still the framework most clinicians use.