How do I pasteurize casing material in the microwave?

Using the microwave oven for pasteurisation of casings or dung substrates is effective and easy.

First bring the casing to the target moisture (when you take a handfull of the material and squeeze it with your hand,not too hard, a few drops of water should come out of it)
Then fill the material in either an autoclavable bag, an oven bag, a pyrex dish with a lid, or a microwaveable rubbermaid container with a lid.
Microwave on HIGH for 5-8 minutes, shaking or stirring occasionally. Once the microwaving is over the material should be very hot. Let cool and apply.

CAUTiON: Don't attempt to microwave dry vermiculite in a plastic dish. It will get very hot and melt it! Always wet the materials before microwaving!