Blue Oyster Mushroom Liquid Culture Syringe

Species: Pleurotus hybrid (King Blue) and Pleurotus pulmonarius (Harvest Blue)
Common Name: Blue Oyster Mushroom
Culture Origin: USA

Blue Oyster Mushroom Liquid Culture contains actively growing mycelium of blue oyster mushroom, offered as the vigorous King Blue hybrid or the Harvest Blue strain (Pleurotus pulmonarius), prized for its thick, meaty stems, broad steel-blue to slate-gray caps, and exceptional productivity. It offers a rich umami flavor and a firm, substantial texture, making it an excellent choice for sautéing, grilling, roasting, soups, stir-fries, and a wide variety of gourmet recipes.

Beyond its exceptional culinary qualities, 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. Its vigorous growth, rapid colonization, and abundant fruiting make it one of the most rewarding gourmet mushrooms to cultivate.

Each liquid culture syringe contains actively growing mycelium from a carefully selected culture, providing a more consistent starting point than working from spores. It is ideal for expanding onto agar plates, preparing additional liquid cultures, or inoculating grain spawn, making it an excellent starting point for gourmet mushroom cultivation.

Available Varieties:

• King Blue (Pleurotus hybrid) — a high-yielding strain with vibrant blue caps, thick, meaty stems, and a rich, savory flavor. Best for cooler grow rooms below 29°C (85°F).
• Harvest Blue (Pleurotus pulmonarius) — a fast-flushing strain with large, dense clusters, ideal for steady production. A great choice for warmer grow rooms.

Select your preferred variety from the options above.

What You Receive:

• One freshly prepared 10 mL or 20 mL liquid culture syringe
• Syringe supplied sterile, closed, and securely capped
• One sterile needle
• One alcohol preparation wipe

Freshly Prepared and Contamination-Screened:

Every syringe is prepared fresh under sterile conditions once 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 3–5 business days for this contamination-screening process to be completed before your order is dispatched.

Quality Guarantee:

If your liquid culture syringe 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, 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 liquid culture 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 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 mushroom cultivation and laboratory use only. Not intended for human or animal consumption. Do not inject into humans or animals.

International Shipping Notice:

International customers are responsible for confirming that live mushroom cultures may be imported into their country and for obtaining any required permits or documentation before ordering. Customs clearance cannot be guaranteed. Aggietropicals is not responsible for delays, rejection, return, confiscation, or destruction resulting from customs procedures or local import regulations.

The contamination guarantee does not cover delays, temperature exposure, loss of viability, or other issues resulting from customs processing or import restrictions. Please review our Shipping Policy before placing an international order.