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Black Pearl Oyster (Pleurotus ostreatus var. australe)

Overview

  • Common Name: Black Pearl Oyster Mushroom

  • Scientific Name: Pleurotus ostreatus var. australe

  • Physical Appearance and Identification:

    • Cap: fan-shaped, with a velvety texture, and blackish-gray to grayish-brown color

    • Gills: decurrent, white to pale grayish

    • Stalk: lateral and off-center, white to grayish

  • Where is it Commonly Found: Southeast Asia, Australia, New Zealand

  • Historical Usage: Black pearl oyster mushrooms have been traditionally used for food and medicine in Southeast Asia, where they are considered a delicacy.


Medicinal Properties


Cooking

  • Flavor profile: mild, nutty, slightly sweet

  • Texture: tender, velvety

  • Best cooking methods: sautéing, stir-frying, grilling, roasting

  • Best way to store: in a paper bag in the refrigerator

  • How long can it be stored: up to 5 days

  • Nutritional value: rich in protein, fiber, vitamins B and D, and minerals like iron, potassium, and selenium

  • Health benefits: anti-inflammatory, immune-boosting, anti-cancer properties, and may help lower cholesterol levels

  • Best pairing options: garlic, ginger, soy sauce, bok choy, broccoli, shiitake mushrooms

  • How to properly clean and prepare: rinse gently with cold water and pat dry, remove any tough stems, cut into desired size and shape for cooking.


Growing

  • Time from inoculation of substrate to mushroom growth: 2-3 weeks

  • Optimal temperature range for growth: 18-25°C (64-77°F)

  • Optimal humidity range for growth: 80-95%

  • Best substrate for cultivation: hardwood sawdust, supplemented with bran or other nutrients

  • Expected yield of mushrooms per pound of substrate: 1-2 pounds

  • When to harvest: When the caps have fully opened but before the edges start to curl upwards

  • How to harvest: Gently twist and pull the mushroom stem at the base

  • Storage and preservation technique for harvested mushrooms: Store in a paper bag or wrapped in a paper towel in the refrigerator for up to 1 week. Can also be dried or frozen for longer storage.

Mushroom Gallery

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