White Oyster Mushroom ( Pleurotus Ostreatus ) 12 ml Liquid Culture White Oyster Mushrooms have a subtle flavor with a meaty texture. They are ideal for frying, for soups, or stir-frying. This makes them ideal companions for salads, pasta, and other dishes. Microscopic Features: This mushroom produces white, to slightly lilac, to lilac grey spores. Spawn Media: Rye, wheat, milo, sorghum, corn, and millet. Sawdust spawn is ideal in the inoculation of stumps and logs in outdoor settings. Substrates for Fruiting: A wide array of agricultural and forest waste products can be used, including but not limited to: Straw (wheat, rye, oat, rice, and barley), hardwood sawdusts; and soybean waste. Storage: Can be left at room temperature for up to 6 months, and refrigerated for longer than 1 year.