When I run a Tank Transfer Method TTM I used distilled white vinegar to sterilize. I then place everything in a room in front of a fan to dry (speeds the drying process. Out doors in the sun is ok as well. Once completely dry bleach or vinegar will sterilize the tanks and equipment.
I have had bio material like Matrix. What I’ve done here is spread it out in something like a cookie sheet or Rubbermaid tote. Dried it with the same fan then let sit for extended time (at least a few weeks) I’ve even soaked in vinegar water first. Then I rinse in boiling water, tumbling in a colander or stirring with a spoon of small amount. Allow to dry again, then place in bags etc to re-sead in a sump etc.
