Bulk Grow Instructions | MyShrooms (2024)

FAQs

How long does it take for bulk substrate to colonize? ›

Depending on how much spawn is used, colonization may take 5 days to 2 weeks. The more spawn used the faster the bulk substrate will colonize. Recommended spawn ratios are usually no less than 20% (1 part spawn to 4 parts substrate).

After about 10 days your MonoTub should be fully colonised and ready to fruit. Don't worry if it hasn't fully colonised by then, it can sometimes take as long as 2/3 weeks to fully colonise. This is largely dependent on the genetics of your spawn and the incubation temperature.

It is difficult to advise on exactly how much water to add as this may change with different types of coco coir but we use around 3l of water. Water needs to be add until it reaches “Field Capacity”. Slowly add water until when you grab a handful of substrate and squeezer it hard only a few drops come out.

Store your 50/50 substrate in a cool and dry location. 50/50 substrate can keep for up to 4 months in these conditions. There will be no need to rehydrated or sterilize the products a second time. If you need to store the product longer it can be refrigerated for up to 6 months and frozen for up to 1 year.

You can tell when mycelium is fully colonized when the entire substrate (such as a jar or a bag) is covered with a dense, white, and fuzzy network of mycelial threads. There should be no visible uncolonized areas or contaminants, and the mycelium should appear healthy and vigorous.

7-10 days later your monotub should be well colonized with a layer of white mycelium and barely any soil visible. It is ready to fruit.

The higher the inoculation rate or amount of spawn added to the substrate, the faster the mycelium will grow through the substrate. The substrate likely will not produce a larger amount of mushrooms, so a high inoculation rate means more money spent on spawn per pound of mushrooms.

Ultimately, both parts of the mushroom may have potential benefits depending on the species, with most having more concentrated nutrients in the fruiting body vs. the mycelium.

Substrates supplemented with wheat bran or other nutritious ingredients are prone to contamination and should be sterilized rather than simply pasteurized. Sterilizing bulk substrates straightforward. Standard Instructions: Prepare bulk substrate according to recipe.

What is the best substrate recipe for cubensis? ›

THE BEST MUSHROOM SUBSTRATE FOR PSILOCYBE CUBENSIS

Coco and vermiculite in a 1:1 mix provides optimal nutrition and has just the perfect structure for cultivation, so it is one of our favourites.

A) lots of water dripping shows that the substrate is too wet. b) a few drops released with some pressure show that the substrate is well watered. If it is too dry then with no drops will be released with pressure.

Coffee grounds should comprise 77% of your substrate's total weight. Pasteurized straw or sawdust equal to 15% of the total substrate weight or 20% of the weight of the coffee grounds.

Your tub should take around 2 to 3 weeks to fully colonize. Check on your bin daily. You'll see white spots start to expand from each point of grain spawn. Over time they will completely cover the surface of the bulk substrate.

Generally, sterilizing substrate blocks in a pressure cooker at 250°F (121°C) takes anywhere from 1 to 4 hours. The minimum sterilization time for small blocks of substrate is one hour, and for large blocks, 3 to 4 hours.

Alternating between the spawn and substrate allows for faster colonization than putting all the spawn on top. In supplemented sawdust this typically means shaking the substrate after inoculation to distribute the spawn evenly.

It's essential to regularly check for full colonization; the substrate should appear fully white and consolidated, indicating that it's ready for the next stage of the cultivation process.