Mystery King Oyster Commercial Liquid Culture (200ml)

Mystery King Oyster Commercial Liquid Culture (200ml)

Scale your mystery king oyster (Pleurotus eryngii) production with this 200ml commercial liquid culture jar. Mystery King is a Nature Lion proprietary king oyster hybrid selected for its larger fruiting bodies and more forgiving growing conditions than standard king trumpet. 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 mystery king 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 eryngii 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

Mystery King is a Nature Lion proprietary king oyster hybrid selected for its larger fruiting bodies and more forgiving growing conditions than standard king trumpet. It produces thick stems with slightly larger caps, and maintains the dense, meaty texture that makes king oysters so popular with chefs. Performs well on supplemented hardwood substrate.

Growing Parameters

• Scientific name: Pleurotus eryngii
• Fruiting temperature: cool to moderate (12-20°C)
• Recommended substrate: supplemented hardwood sawdust, masters mix

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 grain spawn and commercial grow bags.