[PaulF]

I don't understand "baking" the soil. A bag of soilless mix, Miracle Gro brand or Schultz or Jiffy or one of the other brands is pretty cheap and easy for potting up seedlings.

A starter mix has no slow release fertilizer and the Miracle Gro, etc. does. They are all considered sterile enough to use from seed to seedling to transplanting outside. I do not think anyone would recommend using regular soil from the garden, baked or not, for the indoor propagation process. Save time, effort and I think money by using bagged soilless mix inside and save the dirt for outside.