Description

Out Grow King Oyster Mushroom Spawn

Out Grow’s King Oyster Mushroom Spawn (Pleurotus eryngii) is produced on sterilized rye grain and fully colonized with vigorous king oyster mycelium. Each 6 lb bag of King Oyster Mushroom Spawn provides growers with a strong foundation for cultivating one of the most popular gourmet oyster mushrooms.

King oyster mushrooms are prized for their thick stems, dense texture, and rich umami flavor. When grown under the right conditions they produce large, meaty mushrooms that are highly valued in both home cultivation and commercial production.

Our King Oyster Mushroom Spawn is prepared using sterile laboratory techniques to ensure strong colonization and reliable results when mixed with bulk substrate.

What Is King Oyster Mushroom Spawn

King Oyster Mushroom Spawn is grain that has been fully colonized by Pleurotus eryngii mycelium. This living mycelium acts as the seed used to grow mushrooms.

When King Oyster Mushroom Spawn is mixed with properly prepared substrate, the mycelium spreads quickly through the material and forms the fungal network that produces mushrooms.

Using high quality King Oyster Mushroom Spawn helps ensure faster colonization and more consistent mushroom production.

How To Use King Oyster Mushroom Spawn

King Oyster Mushroom Spawn should be mixed into sterilized bulk substrate in a clean environment.

Typical steps include:

Prepare substrate using hardwood sawdust and bran
Sterilize the substrate to remove competing organisms
Mix King Oyster Mushroom Spawn evenly throughout the cooled substrate
Seal the bag and allow the mycelium to colonize

Once the substrate is fully colonized, environmental conditions can be adjusted to trigger mushroom formation.

Cultivation Guide:

1. Substrate: Opt for a mix of 80% hardwood sawdust and 20% wheat bran.
2. Sterilization: Ensure substrate bags are sterilized to eliminate competitors.
3. Inoculation: Transfer spawn to substrate bags in a clean environment.
4. Incubation: Maintain around 75°F (24°C) for optimal mycelial growth.
5. Fruiting: Adjust conditions to initiate mushroom growth.
6. Harvesting: Reap when caps are slightly curved for peak flavor.
7. Post-Harvest: Rehydrate substrate for potential subsequent flushes.

This substrate should be sterilized before inoculation to minimize contamination risk.

Spawn Expansion Rate

One 6 lb bag of King Oyster Mushroom Spawn can typically inoculate between 20 and 30 pounds of sterilized bulk substrate, depending on the spawn rate used by the cultivator.

Higher spawn rates often lead to faster colonization and reduced contamination risk.

King Oyster Mushroom Spawn Specifications

Weight: approximately 6 pounds
Grain: sterilized rye grain
Species: Pleurotus eryngii
Bag type: polypropylene filter patch grow bag
Gas exchange: integrated filter patch

Storage

King Oyster Mushroom Spawn is a living culture and should be used as soon as possible for best results.

If storage is necessary, keep the spawn in a cool environment away from direct sunlight. Refrigeration can extend viability for several weeks.