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Introduction[edit | edit source]

A casing layer is meant to be applied after the colonization of a mushroom substrate. A casing layer, if properly made and managed will provide a non-nutritious top layer that provides a microclimate substantial for the formation of primordial production. This method is more common with “exotics” than traditional psilocybe cubensis.

True Casing Layers[edit | edit source]

One of the more tried and true casings is an easily made and prepared ingredients for an exotic variety. The recipe is as follows:

- One quart of vermiculite

- One quart of peat moss

- Enough lime (hydrated or not) until the pH level is 7.5

Add water until field capacity and then pasteurize. Pasteurization reduces the amount of “bad bugs” but will allow beneficial bacteria to survive and help the fungus fruit.

Pseudo-Casing[edit | edit source]

Generally the term pseudo-casing refers to a coir layer added on top of exposed spawn after it has been mixed with substrate. Thickness varies depending on variety and will range from half an inch to two inches, with the latter being used on Penis Envy (PE) types.

Cultivators often cite increased moisture retention, more even pinsets, and less blobbing with certain varieties (PE) as reasons they apply a pseudo-casing.