Mushroom Spawn Bag 1.7kg – Winter White Oyster (Pleurotus ostreatus)
$39.95
23 in stock (can be backordered)
Description
🤍 Winter White Oyster Mushroom Spawn Guide (Pleurotus ostreatus)
Ready to build your own mushroom blocks from scratch? Meet an absolute Aussie Mushrooms classic! The Winter White Oyster (Pleurotus ostreatus) has been one of the most widely grown commercial and hobby mushrooms in Australia for the last 15 years, and for very good reason. It is incredibly beginner-friendly, fast-growing, and extraordinarily easy to fruit, consistently delivering massive yields of beautiful, bright white mushrooms.
Whether you are growing for choice edible dining, medicinal usage and compounds, or research, this tried-and-true classic is a guaranteed winner.
🌾 Recommended Substrates Winter White Oysters are vigorous and not picky eaters! You can successfully inoculate:
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Straw or Sugarcane Mulch
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Hardwood sawdust or wood pellets
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Paper pellets or cardboard
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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 Winter Whites 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:
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📄 Growing on Paper Pellets with Lime (Super Easy & Clean!): 👉 https://youtu.be/2NXHYkso7hA?si=JsQnqtvM5RdfgGXF
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🔥 Heat Pasteurising Sugarcane Mulch or Straw: 👉 https://youtu.be/gY7DQLXNMXk?si=_wNwCQcARGzUQgTa
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🧊 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!
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Temperature: Store your inoculated bags in a clean, dark space with stable temperatures between 16-20°C.
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Fresh Air: The growing mycelium needs to breathe! Ensure your incubation room has good ventilation, aiming for ideally one room air change per hour.
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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
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Temperature: This strain is a fantastic, wide-range cooler weather fruiter! Once fully colonized and ready to fruit, it thrives in a temperature range of 13-20°C.
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Light: Place your fully white block somewhere with enough natural, indirect light to read a book by.
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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.
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Fresh Air: Mushrooms “exhale” CO2 as they grow! To ensure you get beautiful, large, bright white 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
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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!
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Aussie Favourite: Because this strain is so forgiving and yields so heavily, it is the perfect confidence-builder for first-time growers making their own blocks.
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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









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