Mushroom Spawn Bag 1.7kg – Cold Blue Oyster (Pleurotus ostreatus)

Description

💙 Blue/Pearl Oyster Mushroom Spawn Guide (Pleurotus ostreatus)

Ready to build your own mushroom blocks from scratch? The Blue/Pearl Oyster (Pleurotus ostreatus) is an absolute powerhouse! Known for producing absolutely huge yields, this commercial-grade strain is incredibly popular among professional and hobby growers alike. It is a super-fast grower that pushes out massive, stunning clusters with beautiful steel-blue fruitbodies (especially when they are young pins!).

Whether you are growing for choice edible dining, medicinal usage and compounds, or research, this high-yielding, wide-temperature strain is a fantastic and highly rewarding choice.

🌾 Recommended Substrates This commercial strain is highly aggressive and not a picky eater! You can successfully inoculate:

• Straw or Sugarcane Mulch

• Hardwood sawdust or wood pellets

• Paper pellets or cardboard

• Agricultural wastes (corn cobs, cotton wastes, coffee grounds, leaves, and sunflower husks/stalks)

🛠️ How to Prepare Your Substrate (Video Guides) To use this spawn, you will need to pasteurise your chosen substrate first to give the mushroom mycelium a head start over any competing molds. Because Blue/Pearl Oysters are so robust, you can use any of these easy methods! Check out our step-by-step video tutorials for the best ways to prep your bulk substrate:

• 📄 Growing on Paper Pellets with Lime (Super Easy & Clean!): 👉 https://youtu.be/2NXHYkso7hA?si=JsQnqtvM5RdfgGXF

• 🔥 Heat Pasteurising Sugarcane Mulch or Straw: 👉 https://youtu.be/gY7DQLXNMXk?si=_wNwCQcARGzUQgTa

• 🧊 Cold Pasteurising Straw/Sugarcane using Hydrated Lime: 👉 https://youtu.be/iPVv0nkps2k?si=2KKGPrK1zKBSjbQd

🧫 Incubation (Colonizing Your Block) Once you have mixed your spawn into your prepared substrate and sealed your bags, it is time to let the mycelium take over!

• Temperature: Store your inoculated bags in a clean, dark space with stable temperatures between 16-20°C.

• Fresh Air: The growing mycelium needs to breathe! Ensure your incubation room has good ventilation, aiming for ideally one room air change per hour.

• The Goal: Leave the bags to incubate until the substrate turns completely white with mycelium. Once fully colonized, it is ready to fruit!

🌤️ Best Fruiting Environment

• Temperature: This strain is highly adaptable and features a wide fruiting temperature range. Once fully colonized, it fruits beautifully between 10-20°C. The cooler the environment, the deeper the steel-blue colour will be!

• Light: Place your fully white block somewhere with enough natural, indirect light to read a book by.

• Humidity: When you cut your fruiting holes, keep the humidity high (70-80%+) by misting the area around the cuts 1 to 3 times a day.

• Fresh Air: Mushrooms “exhale” CO2 as they grow! To ensure you get beautiful, large caps instead of long, stringy stems, you need excellent fresh air exchange. Aim for 6-8+ room air changes per hour in your fruiting space.

🍄 Tips & Harvesting

• Inoculation Rate: We generally recommend mixing your spawn into your prepared bulk substrate at a rate of 10% to 20% by weight. The more spawn you use, the faster it colonizes!

• Colour Fade: Don’t be surprised when your vibrant steel-blue pins begin to turn pale or take on a classic “pearl” grey appearance as they grow larger! This is completely natural as the mushroom matures and the caps stretch out.

• When to pick: Harvest the entire cluster at once when the edges of the largest caps are still slightly curled downwards. As soon as they start pointing up and flattening out completely, they are about to drop heavy spores!

Please note this culture is sold with our Mushroom Spawn and Cultures sale agreement. By purchasing you agree to this agreement