Black Oyster Mushroom Liquid Culture 3cc

Black Oyster Mushroom Liquid Culture 3cc Syringe

Grow prolific black oyster mushrooms (Pleurotus ostreatus) from clean, lab-isolated genetics with this 3cc liquid culture syringe. Black oysters are one of the most forgiving species for home cultivators, producing dense clusters of dark-capped mushrooms with a rich, earthy flavour. This mushroom liquid culture is produced in Canada at our CFIA-licensed facility in Brantford, Ontario.

What You Get

• One 3cc syringe filled with live black oyster mycelium in sterile honey-water medium
• Lab-isolated Pleurotus ostreatus genetics — vigorous and contaminant-free
• Sealed and ready for immediate use or refrigerated storage

How to Use

This mushroom culture syringe is versatile and beginner-friendly:

• Inoculate grain spawn — inject into sterilized grain jars or bags to produce black oyster spawn for fruiting blocks
• Transfer to agar — place a small drop on pre-made agar plates for culture isolation or long-term storage
• Expand into liquid culture — use as a starter to build a larger batch of liquid culture for multiple inoculations

Use a still air box or laminar flow hood and sterilize all surfaces with isopropyl alcohol for the cleanest results.

Species Profile

Black oyster mushrooms (Pleurotus ostreatus) are fast-colonizing, heavy-yielding mushrooms that thrive on a wide range of substrates including straw, hardwood sawdust, and coffee grounds. Their dark caps lighten as they mature, and they produce a satisfying meaty texture when cooked. This is an excellent species for beginners due to its aggressive growth and tolerance of imperfect growing conditions.

Storage & Shelf Life

Store your black oyster liquid culture syringe in the refrigerator at 2-8°C. The culture remains viable for several months when stored properly, though we recommend using it within 60 days for optimal colonization speed. Allow the syringe to warm to room temperature before inoculation.

Ready to fruit right away? Check out our black oyster grain spawn or try a grow kit for the simplest path from box to harvest.