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Description

Grey Oyster Mushroom Culture

Grey Oyster Mushroom (Pleurotus ostreatus) Mushroom Culture.

Each culture plate is a 100x15mm petri dish inoculated with fresh Grey Oyster Mushroom (Pleurotus ostreatus) mycelium growing on malt extract agar (MEA), and will arrive actively colonizing.

Grey Oyster Mushroom Culture Lab Notes

At Out-Grow's mycology lab, we have observed the following traits of this mushroom culture:

Grey Oyster Mushroom (Pleurotus ostreatus) mycelium appears white on culture media, very dense, cottony, and rhizomorphic with extremely rapid radial expansion. Growth is very fast, typically colonizing a 100mm plate in approximately 3-5 days at an optimal temperature of 72–79°F. Note: this vigorous strain can quickly overgrow plates and hide contamination under thick aerial mycelium — use frequent edge transfers and avoid letting plates over-colonize or dry between uses.

Mushroom Culture Use

Mushroom cultures, typically on MEA culture plates, are used to grow and preserve mycelium. In most cases, sterile transfers of agar wedges from this plate are used to inoculate fresh culture media or sterilized grain spawn.

Mushroom Culture Storage

Your mushroom culture can be wrapped in parafilm and stored at normal room temps, in a sealed baggie, for up to 6 months. Out-Grow recommends you replate your mushroom culture every 6 months to ensure longevity of your purchase.

Store fully colonized plates at 35–43°F in darkness, sealed with moderate humidity. Plan to transfer every 1-3 months using young edge mycelium for new working cultures, with master plates and slants maintained for long-term stability.

Mushroom Cultures Are Made to Order

All mushroom culture plates are made to order. Once your order is received, Out-Grow will inoculate your plate within 1-3 days. Your mushroom culture will then be incubated in our mycology lab for approximately 7-14 days, or until clean healthy mycelium has been verified by our mycologist. Once verified, your order will be shipped promptly. Please allow an additional week for your mushroom culture to fully colonize upon arrival, as colonization time varies by species.