CVG substrate
February 12, 2025
- 1 cup gypsum
- 4 cups vermiculite
- 650g coco coir
- about 4 quarts water
Mix to “field” moisture. When you squeeze it in your hand some water should come out but not too much.
Put in oven roasting bag on cookie sheet,
30 minutes at 400 degrees F to get the center warm, then turn down to 350 degrees F for another two hours