$10.00
Yellow/Golden Oyster Mushroom
Fruiting Temp: 71-78° F
Fruiting Humidity: 85%-90%
Includes 10ml liquid culture syringe + sterile needle
Recommended use: Use the syringe to inoculate your own liquid culture media to expand the mycelium into many syringes worth.
Storage: Can be left at room temperature for up to 6 months, and refrigerated for longer than 1 year.
Important Note on Golden Oysters: Golden oyster mushrooms are a delicious and beautiful species, but they are not native to North America. Recent scientific studies have shown that in some areas, golden oysters have escaped cultivation and are outcompeting native fungi, which can reduce biodiversity. As responsible cultivators, we encourage you to help protect our native ecosystems. We recommend that you grow golden oysters indoors in a contained environment and avoid composting spent substrate outside.
Liquid culture can be stored at room temperature for up to 6 months and longer than a year if refrigerated. Grain spawn and substrate should be used within 1-2 weeks of being sterilized.
A liquid culture syringe is a culture medium that contains small pieces of Mycelium which have already germinated (from spores) and began growing. Often a Liquid culture syringe contains a nutritious liquid (often sterilized) such as honey liquid culture which the Mycelium can feed on and expand.
A spore syringe contains spores suspended in a water solution (often sterilized and distilled). Spores can be viewed in a similar way seeds are viewed in a plant’s life cycle. The difference with spores is that two spores that are a genetic match must meet (under the correct conditions) then germinate to begin their life cycle. A spore syringe will create a Mycelium network with many different genetic lineages inside.
Generally it takes 3-5 days for visible growth. At this point it is best to shake the grain spawn to redistribute the mycelium. After shaking, the mycelium with rebound and colonize the grain spawn fully in 1-2 weeks.
Apr 13, 2026
Clean culture and fast shipping
Apr 3, 2026
Spawned out great. Showed up quick with the rest of my order. Best deal I’ve found and you can tell he actually cares about what he’s doing. Everything took off fast, zero contamination across all the strains. I’m leaving the same review on each one because it’s all been consistent. He’s got a really solid YouTube channel under the same name if you’re interested. I end up on there a few times a week.
Mar 17, 2026
My first order was lost in transit, but the seller was very responsive and quickly sent a replacement. Great customer service!
Feb 20, 2026
High quality culture. Very active and clean. Great seller!
Feb 19, 2026
Very happy!!! Well order again and again 🙏💜