Lab Test Results

We test what we sell.

Every batch is checked by an outside lab — not just to show customers, but because we wanted proof for ourselves.

November 2022

Earthfort Lab — Long Pile Bin

This sample was harvested from the Long Pile Bin. The Garden Bin was next to harvest, with the Hoop House ready by April 2023.

March 2023

PLFA Lab Results — Regen Ag Lab, Nebraska

This sample came from 28-month-old Johnson–Su compost, made from tree leaves and worked by worms for over 18 months. We discussed this report directly with the Regen Ag Lab technician who ran the test: the compost scored very high across all compost types tested, including thermophilic and Johnson–Su. The protozoa count was high, meaning good recycling of bacteria into nitrogen plants can use, with strong biology across both fungal and bacterial strains. The sample provided was, in the technician's words, one of the best they had seen.

Protozoa High Fungal biology High Bacterial biology High
March 2023

Genetic Test — Biome Makers (BeCrop)

A genomic analysis of the fungi and bacteria in a Colville Compost sample. On the biodiversity scale, Biome Makers noted most compost tests near zero, and no compost or soil they'd tested had scored higher than 7 — this sample showed very high diversity for compost. Their agronomist described it as an exceptional compost that should make a real difference in germination and plant health.

14% auxin-producing microbiome 6% organic phosphorus assimilation 62% iron cycling 57% sulfur cycling 21% zinc cycling

Auxin is a phytohormone that promotes root growth and plant metabolism. The report also noted more aerobic than anaerobic microbes in the carbon-cycling profile, and flagged the genus Pythium detected at genus level only (not identified to a pathogenic species). Biodiversity and functionality scores for compost samples generally run lower than soil samples, since they're compared against Biome Makers' soil sample database.