In the second of our series on How They Grow, watch the video and read on to learn about how Oyster mushrooms grow!
The process of growing oyster mushrooms is fascinating. It begins with substrate preparation, where materials like straw, sawdust, or even cardboard are sterilised or pasteurised to remove competing microorganisms. Then, the substrate is inoculated with oyster mushroom spawn, which contains the fungus’s mycelium. In a warm, dark, and humid environment, the mycelium colonises the substrate, forming a network of threads.
After full colonisation, conditions within the growing house are adjusted to induce fruiting. Fresh air, reduced humidity, and light trigger the formation of primordia, small pin-like structures that develop into mature mushrooms. These mushrooms typically have oyster-shaped caps and grow in clusters. Proper environmental control during this stage is crucial for healthy mushroom development.
When the caps are fully formed but still young and firm, the mushrooms are harvested by twisting or cutting them at the base of the stem. Sometimes, the substrate can produce additional flushes of mushrooms after the initial harvest. If left unharvested, mature mushrooms release spores from their gills, potentially colonising new substrates and completing the mushroom life cycle.
Oyster mushrooms are relatively fast-growing and are known for their delicious taste and culinary versatility.
