Organic Yellow Oyster Fruiting Block
- 🍄 Organic Yellow Oyster Mushrooms: Complete kit for growing organic yellow oyster mushrooms at home, including all the necessary supplies.
- 🌱 EASY TO GROW: Ready to use—just water it and follow the instructions for successful growth.
- 💪 HIGH YIELD: Harvest up to 1.5 kg of delicious fresh yellow oyster mushrooms over 2 to 3 harvests.
- 🌍 ORGANIC PRODUCTION: Our bales are certified organic ("BE-BIO-01") by Certisys (Belgium) and are guaranteed to be free of pesticides and GMOs.
- 📘 INSTRUCTIONS: Download the instructions for the bundle here.
- ⏳ AVAILABILITY: Depending on inventory, delivery times may vary from 3 days to 3 weeks. Please feel free to contact us for more details.
🍄 Variety: Yellow Oyster Mushrooms
Our fruiting blocks let you grow your own yellow oyster mushrooms at home.
- harvest Between 1 and 1.5 kg of fresh mushrooms over 3 harvests.
-
Ingredients: Water, sawdust, grains (including alfalfa), lime, mycelium. Net weight per bale: approx. 4.8 kg.
- Dimensions: 25 x 20 x 20 cm (L x W x H)
- Origin: Belgium (Mycosphere)
Note: The harvest estimates harvest based on our production experience but are not guaranteed. Yields depend on growing conditions and the grower’s experience.
(*) Our bales are certified organic ("BE-BIO-01") by Certisys (Belgium).
Legal notice for Belgium: "Organic growing medium: Pasteurized and inoculated mushroom-
ing medium" (Exemption No. EM470.J)
📋 Usage
If you can't use the bunch right away, you can store it in the fridge for about two weeks. This variety thrives in temperatures between 15 and 29°C, with the ideal range being between 18 and 22°C.
To ensure vibrant colors, make sure the plant gets plenty of light. Make a slit in the side of the bag at the substrate level, remove the air from the bag, and place it with the opening on its side. Keep the bag moist until buds appear, maintaining a humidity level of 80 to 90%. Use our mini-sprayer or professional misters to maintain optimal humidity.
🔍 fruiting settings
| fruiting temperature | 15–29°C |
| Relative humidity | 85 to 95% |
| fruiting period | 3 to 5 days |
| CO2 concentration | 500–1,000 ppm |
| fresh air exchange | 4 to 8 cubic feet per hour |
| Light requirements | 500 to 1,000 lux |
| Number of harvests | 2 to 3 harvests, 10–14 days apart |
🏡 Where should you grow it?
Grow them indoors (kitchen, garage, basement). Oyster mushrooms need a little light to grow. Opt for indirect sunlight and avoid anything that might dry out the substrate: drafts, radiators, and direct sunlight. Oyster mushrooms like humidity but don’t like being constantly soaked.
📦 harvest Storage
Harvest the clusters before the edges of the caps curl up and start to turn slightly brown. Early in the growth stage, the caps can double in size every day. When growth begins to slow down, it’s usually the right time to harvest. Harvesting young mushrooms ensures better shelf life, as well as a brighter color and a more tender texture. Pull the clusters out by twisting them. Remove any remaining stem pieces from the substrate and keep it moist until the harvest .
We usually get three harvests from this type of plant. The first harvest the most abundant, and each subsequent harvest yields half as much.
Oyster mushrooms will keep for about 7 to 10 days in a paper bag in the refrigerator. For longer storage, you can freeze them or can them.
💡 Tips
To promote growth and productivity in second and third crops:
- Rehydrate the bags by soaking them in water overnight, then drain them and return them to the growing medium.
- Give the bundle a " cold shoc placing it in a cool place (such as the refrigerator or outdoors) overnight. This simulates the onset of winter and encourages fungal growth.




