Genetics & Agar
LIQUID CULTURE (10CC SYRINGE)
Grey Oyster Liquid Culture: Classic Caps, Strong Mycelium, Reliable Flushes
Why Grey Oyster LC Is a Staple
- Commercial-Style Genetics: Grey Oyster is a classic P. ostreatus type used by many farms.
- Strong, Even Colonization: Thick white mycelium runs through grain cleanly and predictably.
- Clean, Mild Aroma: Fresh mushrooms smell neutral and pleasant with a light earthy note.
- Smooth Savoury Flavour: Firm texture and gentle umami that works in any dish.
- Balanced Growth Profile: Performs well in both tents and monotubs with basic dialing-in.
Timeline & Growth Expectations
- Grain Colonization: ~10–14 days at 18–24 °C.
- Substrate Run: 5–9 days after spawning to bulk.
- Pinning: ~4–7 days once FAE and light are introduced.
- Total Time From Injection: ~20–28 days.
Best Formats for Grey Oyster LC
- Rye or Millet Spawn Bags: Great for both beginners and advanced growers.
- CVG or Straw-Based Substrates: High-yield and forgiving.
- Grow Tents: Excellent for big shelves and layered flushes.
Environment & Fruiting Conditions
- Colonizing Temps: 18–24 °C
- Fruiting Temps: 12–18 °C
- Humidity: 85–95%
- FAE: Medium–high (watch for edge cracking if too dry)
- Light: 800–1500 lux, cool-white spectrum
15.00 CAD
Reviews
Joshua
Toronto ⭐⭐⭐⭐⭐
Ordered 20 plates + Lions Mane culture. One plate had a tiny crack in shipping. Sent a pic to Roman, he shipped two replacements the same day. Culture is absolutely ripping — already on T3.
Karin
Toronto ⭐⭐⭐⭐⭐
Best pre-poured plates I’ve bought in Canada. Thick agar, zero condensation, still perfect after 2 months in the fridge. Supportive little family company — highly recommend.
Antony
Vaughan ⭐⭐⭐⭐⭐
Golden Oyster syringe + 10 plates. Plates poured thicker than any US vendor I’ve tried. Very satisfied!
Lorry
Oshawa ⭐⭐⭐⭐⭐
Blue Oyster liquid culture is stupid clean. One of the owners (Roman?) replied to my silly question in 3 minutes. You don’t get that from the big guys.
Tanya
Ottawa ⭐⭐⭐⭐⭐
Black Pearl King syringe made trunks thicker than store-bought. Hand-written thank-you note in the box — nice touch from a family shop!
Danny
Montreal ⭐⭐⭐⭐⭐
Golden Oyster LC syringe turned 10 lbs of grain - snow-white in 13 days. They threw in free alcohol wipes and some extra needles — small gesture, big appreciation.
Jordan
Toronto ⭐⭐⭐⭐⭐
Ordered to the rock and everything survived the trip. Lion’s Mane plates are pouring out perfect cultures. Keep doing what you’re doing, fam!
Jessica
Ottawa ⭐⭐⭐⭐⭐
Finally found a Canadian vendor with stable genetics. Got the Grey Oysters and it’s true to type. Roman spent 20 minutes explaining isolation technique to me — way more info than I expected.
Igor
Edmonton ⭐⭐⭐⭐⭐
Plates are poured thick and perfect. Asked Roman which agar recipe they use — he sent me the exact ratios plus malt percentages. Made my own batch and they’re identical. 10/10 service.
Sophie K.
Hamilton ⭐⭐⭐⭐⭐
Mystery syringe sale turned out to be Shitake mushrooms. Growth is insane. Roman answered all my paranoid contamination questions at 2 a.m. You guys rock.
Ryan
Ottawa ⭐⭐⭐⭐⭐
Fast shipping, but one sleeve of plates arrived with condensation. They told me how to fix it in the fridge overnight — saved the whole batch. Customer service is unreal.