4 Pack Oyster Mushroom Liquid Culture Blue, Gold, Pink and King Oyster

$20.00 $40.00

Shipping to United States: $6.99

This set includes Blue Oyster, Gold Oyster, Pink Oyster, and King Oyster varieties.


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.

Check out my YouTube Channel for in-depth tutorials: https://youtube.com/@SporenSprout?si=boDK1qBiBf_RfR4b

Frequently Asked Questions

Care instructions

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.

What is the difference between spores and liquid culture?

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.

How long does it take to colonize grain spawn?

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.

Man what a good buy. I will definitely order again.


So far so good. 2 of the cultures tested clean on agar and have made clear jars of liquid culture. Grain jars have begun to colonize as well.


Fast shipping. Haven't had time to put them to agar yet.


The culture is quickly colonizing the spawn without any contamination. Looking forward to eat these mushrooms.


I had requested a substitute within the four pack of oyster mushroom liquid cultures, the seller agreed immediately and without hassle. The cultures have been robust so far, grown on oats grain. The only one showing a little slower growth was the Italian oyster. It was fun to see the pink oysters develop in the jars. In the picture, goldens in left column, Italians on top row, blue in middle row, pink on bottom row.


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