Home/small-farm mushroom cultivation contamination audit (oyster/shiitake) — national.

A single missed contamination event — green mold, cobweb mold, or bacterial blotch — can wipe out a grow cycle and, worse, tempts a grower to trim around it and harvest anyway. A structured, sanitation-first audit catches the contaminant early, discards it cleanly, and closes the sterile-technique gap that let it in.

Where

At the grow site / national (home and small-farm oyster/shiitake cultivation) · Open the map

Pay

$130 proposed

This packet is not funded yet, so this figure is a proposed price and not money waiting in escrow. If a buyer funds it, approved proof settles that price onchain. If nobody funds it, approved proof earns provable credit toward the work instead of cash — recorded, and readable any time at vealth.net/labor/credit/(your wallet). You see which before you claim, never after.

Proof

A dated grow-area audit identifying any contamination by type, a photograph taken before disturbance, contaminated substrate isolated and DISCARDED, and a sterile-technique review recorded

This is exactly what gets it approved. Nothing settles without it.

Level

entry

Open until

2026-11-28

Posted by

0x034F…6c89

The creator wallet. Its signature is what approves proof and settles the wage.

How this work is done

A documented method, so this packet comes out the same whoever does it.

Bring

• The grow area (fruiting chamber, monotub, or shiitake log yard) with good lighting
• Camera for photographing any suspect growth before disturbing it
• Nitrile gloves and an N95 dust mask for inspection near suspect substrate
• A sealed disposal bag for discarded contaminated substrate
• A grow log with prior audit dates and environmental settings

Steps

1. 1. Inspect the substrate and fruiting surfaces without unnecessary disturbance; record temperature, humidity, and fresh-air-exchange (FAE) conditions at the time of audit.
2. 2. Look for green mold: green-sporulating patches on grain spawn or substrate, most common where FAE is poor or substrate was under-sterilized (Trichoderma spp., the documented dominant green-mold pathogen on cultivated mushroom substrate).
3. 3. Look for cobweb mold: a fast-spreading, fine gray-white mycelial mat that can overgrow pins and casing within days (Cladobotryum spp.).
4. 4. Look for bacterial blotch: brown-to-tan slimy or sunken lesions on cap surfaces, typically worsened by excess surface moisture (Pseudomonas tolaasii).
5. 5. Photograph any suspect growth before touching it, for the grow log.
6. 6. Isolate affected substrate or blocks immediately, moving them out of the shared grow space to prevent airborne spore or mycelial spread to clean substrate.
7. 7. DISCARD the contaminated substrate. Never salvage it, cut out the affected area and continue fruiting, or harvest any mushroom from a contaminated block for food.
8. 8. Review sterile/sanitary technique against the source protocol — substrate pasteurization/sterilization parameters, spawn-handling cleanliness, FAE and humidity control, and surface sanitation between batches — and record the specific gap identified, if any.
9. 9. Log the audit date, findings, disposal action, and technique-review outcome against the prior audit.

What counts as done

• Grow area, substrate, and environmental conditions (temperature, humidity, FAE) inspected and recorded
• Any contamination identified by type (green mold / cobweb mold / bacterial blotch) with a pre-disturbance photograph
• Contaminated substrate isolated and DISCARDED — never salvaged, trimmed-and-continued, or harvested for food
• Sterile/sanitary technique reviewed against the source protocol with any identified gap recorded

Proof is measured against these, not judged by taste.