Paz
Crowing
I only sterilize soil if I want to grow mushrooms on it. I do however sterilize pots and scissors with bleach.I think you mentioned that you purchased sterile seed starter mix. This is my first year attempting to grow seeds in the house for transplanting later, but I have been reading lots of articles and watching a number of YouTube videos on the need to sterilize any and all seed starting and potting soil mixes to kill fungus gnat eggs.
The 3 methods I have seen are cooking the soil in the oven, microwaving the medium, or dumping boiling hot water over the soil. Most of the people I have seen on YouTube use the boiling water method, which is what I plan on doing with my starter medium. I have my seed starter shelf in our second bathroom, so the last thing I want is fungus gnats flying around in the house.