Manure Monotub Mushroom Bulk Substrate with Gypsum

Our 2 kg pre-sterilized, ready-to-use Manure Mushroom Bulk Substrate, is ideal for your monotub cultivation. Designed specifically for poop or dung-loving mushrooms, this substrate is hydrated to field capacity, ensuring optimal moisture content for mushroom growth. This substrate can be used with white button mushrooms but will require a pasteurized casing layer.

Your Options:

1X 2Kg pre-sterilized Manure Substrate

5X 2Kg pre-sterilized Manure Substrate

10X 2Kg pre-sterilized Manure Substrate

Manure substrate is an advanced option typically used by experienced growers. It is not recommended for first-time growers as it is highly nutritious, making it susceptible to various types of growth. Even though the substrate is sterile, a high grain ratio (minimum 40%) is recommended to facilitate quick colonization and reduce the chances of contamination. Millet is an excellent grain choice for manure substrate due to its slightly lower nutrition and more inoculation points than rye. For instance, 1 kg of rye might have 3000 kernels, whereas millet, being smaller, might have 8000 kernels in a kg. This higher number of inoculation points in millet allows for a more even spread and faster colonization.

If you are working with our Grain spawn and do not want to use up all the spawn in one go,  inoculated a grain bag with agar or inoculated a substrate bag with grain spawn for which you had to cut open the bag but have no way to seal the bag again consider to have our Large  Sealing Bag Clips

Why Manure Substrate?
Manure is highly nutritious and is often considered the gold standard among monotube substrates. Its rich nutritional content makes it a superb choice for mushroom cultivation.

Source and Quality of Manure
We source our manure directly from a trusted farm in New South Wales. The manure, primarily horse manure and occasionally cow manure (based on availability), is aged for over a year. This aging process is critical in preparing the manure for use as a substrate, ensuring it contains the right balance of nutrients for optimal mushroom growth.

Composition of the Substrate
The ingredients of our Manure Substrate include sterilized manure, coco coir, vermiculite, and gypsum. This blend creates a balanced environment for mushrooms, providing them with the necessary nutrients and moisture retention capabilities. The addition of coco coir and vermiculite aids in maintaining the substrate’s structure and moisture levels, while gypsum contributes to aeration and adds essential minerals.

Check our Store to find other Mushroom Substrates.

1. Take the bags out of their packaging as soon as possible, and keep them at room temperature, away from direct cold/heat sources.
2. Do not store uncolonized bags in the fridge; only fully colonized bags can be kept to slow down the fungus and delay fruiting until ready.
3. We recommend that the bags are colonized as soon as possible to minimize the chances of contamination or moisture loss.
4. Work in front of a flow hood or a still air box or in a room with no air movement with the workspace adequately sanitized.
5. Mix at least 15% grain spawn or higher of your desired species, mix it thoroughly in the bag, and let it colonize.
6. Incubate at 22-24°C in a dark spot and keep all the bags at a distance from each other to avoid excess heat.
7. Temperatures lower than 20°C make mycelium grow slowly, which could allow competing organisms to flourish. Temperatures above 24°C favor competing organisms rather than fungi, which increases the likelihood of contamination. Temperatures around 32-34°C will kill the mycelium.
8. Prioritise airflow over, keeping the bag in a dark spot. If there is no air current during colonization, the CO2 buildup inside the bag will not be able to be expelled out of the air filter patch. Excess CO2 buildup will suffocate mycelium, leading to slow growth and mycelium producing excess metabolite as a sign of stress, which changes the pH of the substrate and makes it easier for contamination to thrive.

This Products is shipped from Marrickville, Sydney.

Shipping Cost and Time—The shipping cost will be displayed on the checkout screen.

Handling Time—Packages typically takes 0-3 days to prepare for shipment. Unless otherwise stated as ‘Lead time’ on the listing as something different.

Please note that handling time may vary, especially during busy holidays or sale period.

Certain products, like Colonised agar plates or Sawdust spawn, Spray and grow kit, have longer handling times as they are made to order.