Next question: :-)
Pro’s and cons of sterilizing soil / potting mix?
Would a long hot sunny day in a closed car be sufficient for quantities on the order of a 5 gallon bucket?
If it’s commercially manufactured and purchased in a bag, it’s already sterile.
If this is dirt you’re digging out of the ground or re-using from one bed to another or in pots and you’re concerned about weed seeds and/or disease, or you have an area that has already caused you a crop failure, then here’s a good primer on how to sterilize soil:
https://morningchores.com/how-to-sterilize-soil/
I’ve never had this issue. Soil in my garden beds has been dug from our very ‘clean’ pasture (bottom soil; nothing has ever been grown on it other than grass for cattle) and amended with our own home-made (Mule & Steer manure and straw bedding) compost.
Just remember that sterilizing soil kills all the GOOD STUFF in there, too.
Has anyone else had this situation? If so, chime in! :)