These instructions will guide you through the process of preparing grain either to be used as spawn to inoculate bulk substrates or as mushroom substrate that can be directly cased. | ||
- 100g (=3.5 oz~125 ml~0.53 cup)
rye Basic millet or birdseed recipe for 1 pint jar: - 100g (3.5 oz~140 ml~0.59cup) birdseed If you are going to prepare rye for producing spawn, you might use a tad less water( I use 105g in that case) Note: Fill into the jar, screw the lid fitted with a polyfill filter on the jar and pressure cook for 1 hour. The water absorption ability can vary depending on the grain quality and the type and the size of the pressure cooker. It´s best to make a batch of test jars when one acquires a new
grain for instance 100g rye and 100, 105, 110, 115 and 120g water. |
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Put the jars back in to the pressure cooker and let sit until cool. It has to be pointed out that the grain on this picture was meant to be directly cased after colonisation.
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The grain used for spawn should look a bit drier, but still moist, and have less exploded kernels. The rye on this picture has been pressure cooked 48 hours ago with a rye/water ratio of 100g/105g. |