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SUMMER NOTICE:
Custom 3L spawn bags are temporarily unavailable due to high summer temperatures.
We expect to resume production in mid-September. THANK YOU for your understanding!
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Golden Teacher Growing Guide: Timeline & Conditions | Spores Lab
Golden Teacher Growing Guide That reputation cuts both ways. Because Golden Teacher is forgiving, beginners often assume it's foolproof, and then can't work out why the tub stalled. It isn't foolproof. It's just quicker to tell you when something's wrong. Here's the timeline, the conditions behind each stage, and the three things that still go wrong. How long does Golden Teacher take to grow? Roughly 6 to 8 weeks from inoculation to first harvest. That's fast for a cubensis —

Phil O'Zybyn
Jul 263 min read


Penis Envy Growing Guide for Beginners
Penis Env y mushrooms Penis Envy (PE) is one of the most sought-after Psilocybe cubensis varieties — known for its striking appearance, dense fruiting bodies, and reputation for potency. It’s also one of the slower and more demanding varieties to grow. This guide walks you through what makes PE different and how to give it the best chance of success from the start. Beginner note If this is your very first grow, consider starting with a more forgiving variety like Golden Tea

Phil O'Zybyn
May 196 min read


Mushroom Temperature & Substrate Guide: Oyster, Shiitake, Lion's Mane, and Psilocybe Species
Blue Oyster, Lion's Mane and Shiitake mushrooms. Mushroom Temperature & Substrate Guide: Oyster, Shiitake, Lion's Mane, and Psilocybe Species Ask ten experienced mushroom growers what the most important variable in cultivation is, and the majority will say the same thing: temperature. Not substrate. Not genetics. Not even sterile technique — though that matters enormously. Temperature. It governs every phase of a mushroom's life cycle, from the first thread of mycelium grow

Phil O'Zybyn
May 411 min read


Psilocybe cubensis Growing Conditions: Temperature, Humidity, Air and Light
A Psilocybe cubensis culture can colonise a jar of grain flawlessly — dense white mycelium wall to wall, no contamination, a textbook spawn run — and then stall completely the moment it is moved to fruiting. No pins for two weeks. Or it throws a flush of thin, wispy stems with tiny caps that never open. In almost every case like this the genetics were sound, the substrate was fine, and sterile technique held. What changed was the environment, and the environment was wrong for

Phil O'Zybyn
Apr 610 min read


THe Biggest Mistake Growers Make (It’s Not Sterility.....ITS Healthy Mycelium)
If you ask new mushroom growers what causes most failures, the answer is almost always the same: contamination.

Phil O'Zybyn
Feb 113 min read
Spores Lab Blog - Learn mushroom growing tips
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