Use the largest mesh that will still retain the media itself. General Directions: Fill a large sieve, colander, or strainer half full with clay pebbles. You don't sterilize substrates, you pasteurize them. Coco coir dust is the major constituent of most coir products and is composed of millions of capillary micro-sponges that absorb and hold up to nine times its own weight in water. Use 5% bleach and mix it with water. Wash the coco in distilled water.

Why Recondition Coco Coir Before Using It Again? put your substrate in the bucket (in a pillow case or something makes it easier) and then pour boiling water in … Rinse with tap water to remove organic matter. Break it up and physically remove any roots that remain in the coco. When you are working with non-nutritious substrates like coir and verm, you can get away with using a bucket tek. Soak the coir for 4-5 hours. For 1 kg of bleach, you will need 5 liters of water. If you don’t want to use hydrogen peroxide you can use, a chlorine bleach to sterilize your coir. There will be a lot of salts in it, so you need to thoroughly flush them out. Make sure to dissolve the salt. Create a small bucket mix of a little salt and cold water. 3 Brush the mat well with the salt water mixture.