Field
Notes.

Short-form writing from our work inside licensed cultivation facilities. Observations, postmortems, and quiet arguments about biosecurity as a practice rather than a product. New entries as they're written — not on a schedule.

Before and after CLEANTheory tank treatment — biofilm-coated reservoir wall on the left, flawless interior on the right after 30 minutes

Featured · Water Vol. 01 · No. 04 · Winter 2026

The Invisible Threat.

Biofilm silently undermines indoor cultivation by harboring pathogens, clogging emitters, and stealing nutrients from your plants. Common remedies like ozone, peracetic acid, and traditional chlorine compounds each carry tradeoffs that compromise equipment, plant health, or both. CLEANTheory's three-precursor PATHox™ system addresses those tradeoffs with high chemical purity, neutral pH operation, and continuous automated dosing that keeps your lines clean and your crop protected.

Read the entry → 4 MIN

The archive

Prior entries

№ 01

Practice Vol. 01 · No. 01 · Spring 2025

A biosecurity program is not a product. It is a discipline.

The opening entry of this publication, our thesis in longer form than we usually say it. Why we think biosecurity has to be engineered upstream, and what that looks like in a facility that takes it seriously.

Read → 8 MIN

№ 02

Surface Vol. 01 · No. 02 · Summer 2025

The disinfectant is not the protocol.

Every facility we walk has the chemistry. Almost none has the documented, trained sequence that turns chemistry into biosecurity. Notes on what the PATHox™ training program actually covers.

Read → 6 MIN

№ 03

Water Vol. 01 · No. 03 · Fall 2025

All irrigation systems tell a story – some are just horror novels.

Every reservoir we audit has a story we could have told six months in advance. A working note on why irrigation lines are the cheapest thing in the facility to get right, and the most expensive to get wrong.

Read → 9 MIN

Start the conversation

Tell us about your facility

If a tank flush or a facility visit is the right next step, we’ll say so. If you just have a question or two we can answer — hit us up, we’d love to chat.

Email: hello@cleantheoryinc.com
Phone: (413) 564-7940
Hours: Mon–Fri · 9:00 AM – 6:00 PM ET
HQ: Easthampton, MA
Convo: Real conversation, not a funnel

Field Notes.