Species: Pleurotus hybrid
Common Name: King Blue Oyster Mushroom
Culture Collection Origins: USA
King Blue Oyster is a vigorous hybrid oyster mushroom developed by crossing a traditional Blue Oyster with another large-fruiting Pleurotus strain. It is prized for producing exceptionally thick, meaty stems, broad steel-blue to smoky gray caps, and dense clusters with outstanding culinary quality. Its rich umami flavor and firm texture make it an excellent choice for sautéing, grilling, roasting, soups, stir-fries, and plant-based recipes where a substantial, meat-like texture is desired.
Beyond its exceptional culinary qualities, King Blue Oyster is naturally rich in dietary fiber, protein, B vitamins, essential minerals, antioxidants, and beta-glucans. Like other oyster mushrooms, it has attracted considerable scientific interest for its naturally occurring bioactive compounds and their potential roles in supporting immune function, cardiovascular health, antioxidant activity, and overall wellness.
Among cultivators, King Blue Oyster is considered a highly productive workhorse strain, valued for its rapid colonization, vigorous growth, warm-weather tolerance, and excellent biological efficiency. It reliably produces large, dense clusters with thick stems that remain tender and fully edible. While it is generally an easy and rewarding mushroom to cultivate, maintaining proper humidity and fresh-air exchange is important to produce the highest-quality fruiting bodies.
Each liquid culture contains actively growing mycelium from a selected culture, providing a more consistent starting point than working from spores.
What You Receive:
- One freshly prepared 10 mL liquid culture syringe
- Syringe supplied closed and securely capped
- One sterile needle
- One alcohol preparation wipe
Freshly Prepared and Contamination-Screened:
Every syringe is prepared fresh under sterile conditions after your order is received. Before shipment, a sample from each batch is transferred onto sterile agar in a Petri dish and observed during a quality-control screening period to verify the absence of contamination.
Please allow 1–3 business days for this contamination-screening process to be completed before your order is dispatched.
Quality Guarantee:
If your liquid culture is confirmed to be contaminated upon arrival, contact us promptly with clear photographs. We will review the claim and, if confirmed, provide a replacement at no additional charge.
Proper sterile technique must be used after opening, as contamination introduced during handling, inoculation, storage, or cultivation is outside our control.
Typical Fruiting Time:
Under optimal cultivation conditions, King Blue Oyster typically produces its first harvest approximately 3–5 weeks after substrate inoculation, depending on the substrate, incubation temperature, humidity, and environmental conditions.
Storage:
Keep the syringe refrigerated (2–8°C) and protected from direct light. The culture may be stored for up to 6 months under refrigeration, although we recommend using it as soon as practical for the most vigorous growth.
Do not freeze. Gently shake the syringe before use to evenly redistribute the mycelium.
Important Information:
This product does not include cultivation instructions. Customers are responsible for researching the appropriate substrate, incubation conditions, fruiting temperatures, humidity, fresh-air exchange, and other cultivation requirements for King Blue Oyster mushrooms before purchasing.
Liquid culture appearance naturally varies. Healthy mycelium may appear as cloudy, wispy, stringy, or suspended white growth within the nutrient solution.
For gourmet and functional mushroom cultivation only. Not intended for human or animal consumption. Do not inject into humans or animals.