Permafrost — Blue OysterCommercial Liquid Culture 200ml

Blue Oyster Commercial Liquid Culture (200ml)

Keep your blue oyster mushroom (Pleurotus ostreatus var. columbinus) production running with this 200ml commercial liquid culture jar. Blue oysters are a staple for commercial mushroom farms — fast-colonizing, cold-tolerant, and consistently high-yielding. This jar gives you lab-isolated genetics in a format designed for repeated sterile draws across large production batches. Made in Canada at our CFIA-licensed facility in Brantford, Ontario.

What's Included

• One 200ml mason jar with live blue oyster mycelium in sterile honey-water medium
• Self-healing injection port for clean, repeated culture draws
• Synthetic filter cap for continuous gas exchange
• Lab-isolated Pleurotus ostreatus var. columbinus genetics

How to Use

Draw culture through the self-healing injection port using a sterile syringe. One 200ml jar provides enough culture to inoculate a full production run of grain jars or grow bags.

• Wipe the injection port with isopropyl alcohol before every draw
• Use a sterile 18-gauge needle and syringe
• Inject 2-5ml per grain jar or spawn bag
• Swirl the jar gently before drawing to ensure even mycelium distribution

Species Profile

Blue oyster (Pleurotus ostreatus var. columbinus) is one of the most reliable commercial mushroom species available. It tolerates cooler fruiting temperatures, colonizes aggressively, and produces large clusters of blue-grey caps that are popular at farmers' markets and with restaurant buyers. It performs well on straw, hardwood sawdust, and a range of agricultural byproducts.

Why Commercial Size

The 200ml jar format lets you maintain genetic consistency across your entire spawn production line. One jar replaces dozens of individual syringes, and the self-healing injection port allows repeated draws without opening the jar — keeping contamination risk low and throughput high.

Build your production workflow with our blue oyster spawn cases and commercial grow bags.