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Folk Fungi

Blue Oyster Mushroom Liquid Culture

Regular price $18.00 CAD
Regular price Sale price $18.00 CAD
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Skill level
10 ml
Shelf life
2 months (refrigerated)

Our blue oyster (Pleurotus ostreatus var. columinus) liquid culture is perfect for everyone, from liquid culture newbies to seasoned growers. This strain grows quickly, yielding umami-rich, bluish-grey mushrooms. It's adaptable, thriving indoors across various temperatures and outdoors in cooler climates.


To use a liquid culture syringe, you'll need a sterilized grain bag.

We recommend performing inoculation in a still air box or laminar flow hood to reduce the possibility of contamination. However, it's still possible to get good results without these tools—cleaning your working space, tools and materials with isopropyl alcohol is key.

Always handle liquid culture syringes using sterile technique, ensuring they are thoroughly shaken before use. Flame sterilize the needle (a regular lighter works fine), let it briefly cool down, then insert it into the grain bag's self-healing injection port. Inject 3-5 ml of liquid culture per 1.5 kg grain bag. If you intend to reuse your needle, sterilize it before and after each subsequent use.

For a visual demonstration of this technique, watch the video below.


  • Syringe: 10 ml with luer lock
  • Needle: 18 gauge, 33 mm long
  • Liquid culture volume: 10 ml


Distilled water, light malt extract, Pleurotus ostreatus var. columinus mycelium.


If not used immediately, store the liquid culture in the fridge for up to two months.



We offer shipping to Canadian addresses through Canada Post and UPS. Shipping costs $20 for orders under $150. For orders $150 or more, shipping is free.

Local delivery

We offer local delivery to Winnipeg addresses through Trexity. Delivery costs $7 for orders under $150. For orders $150 and over, delivery is free.

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