OK I wuz just checking
Most commercial potting soils are harboring critters like white fly or fungus gnats. Just something ya gotta live with.
I sterilize soil for my German hybrid brugmansia seeds by putting the soil in a old kitchen towel into a pot and pouring boiling water over all .
For seeds I also use Rock Wool (sheet cubes) which is sterile unless you contaminate it with dirty hands or utensils
Moo-chas Grass-ias from da Dairy State