King Oyster Mushroom Liquid Culture

(Pleurotus eryngii)

Grow gourmet-grade mushrooms with our premium King Oyster liquid culture. Pleurotus eryngii is prized for its thick, meaty stems and mild, umami-rich flavour, often used as a plant-based meat alternative. With excellent shelf life and a firm texture, King Oyster is a favourite among chefs and market growers alike.

This culture is lab-prepared under sterile conditions and suspended in a nutrient-rich solution, ideal for hardwood-based substrates and supplemented sawdust blocks. A fantastic choice for home growers and small-scale commercial cultivation.

Features:

• 1x 10ml of high-quality, actively growing culture
• 1x sterile needle
• Tested to ensure only mushroom mycelium is present
• Ideal for hardwood sawdust, logs, or supplemented substrates
• Suitable for expansion to grain, agar, or other media

Suitable Substrates:

• Hardwood sawdust
• Enriched sawdust blocks
• Sterilized wood chips or logs

How to Use:

1. Shake Before Use
   Gently shake the syringe to evenly distribute the mycelium throughout the liquid.

2. Work Sterile
   Ensure a clean work environment. Use a still air box or laminar flow hood, and sanitize all surfaces, tools, and gloves with 70% isopropyl alcohol.

3. Inoculate Substrate
   Inject 1–2 ml of liquid culture into your sterile substrate. King Oyster thrives on supplemented hardwood sawdust. Use a sterile needle and injection port for best results.

4. Incubate
   Keep inoculated containers in the dark at 20–24°C (68–75°F). Colonization typically takes 2–3 weeks.

5. Introduce to Fruiting Conditions
   Move to a fruiting chamber with moderate humidity, good fresh air exchange, and indirect light. King Oyster prefers cooler temps (15–21°C / 59–70°F) and benefits from lower humidity during fruiting to encourage thick stems.

Store under 5°C. Refrigerate.

Use within 3 months for best results

Note on Packaging:

You may receive a “Beta Label” that lists Dextrose. We’ve since swapped to an Extra Light Malt Extract (ELME) formula for superior and more consistent mycelial growth. We are simply using up our remaining label stock to reduce waste!