How do you sterilize terrarium soil?

Sterilizing Soil with an Oven For the oven, put some soil (about 4 inches deep) in an oven-safe container, like a glass or metal baking pan, covered with foil. Place a meat (or candy) thermometer into the center and bake at 180-200 F. (82-93 C.) for at least 30 minutes, or when soil temp reaches 180 F.Click to see full answer. In this manner, how do you sterilize potting soil? How To Sterilize Soil & Organic Potting Mix Recipes Fill an ovenproof container about 3 inches deep with soil, mix in a generous amount of water (not enough to make it runny or soupy but thoroughly wet) then cover with aluminum foil. Bake in a preheated oven (200°F) until the temperature of the center reaches 180°F (use a meat thermometer to measure). Also Know, how can I sanitize my soil without baking it? freezing soil won’t get rid of fungus and mold, they just go dormant until it warms up again. Drowning won’t get rid of fungus gnats, in fact they love wet soil. baking is the only surefire chemical-free way to go. If you don’t want to do it indoors, go buy about 6 large fresnel lenses and make a solar oven. Also to know is, do I need to sterilize potting soil? Potting soil, whether reused or homemade, can contain disease organisms, insects or weed seeds that compromise the health of your plants. Purchased, unused potting soil labeled as sterilized doesn’t require sterilization before use, but not all purchased potting soil is sterilized.How do you sterilize potting soil with boiling water?Cover the pot, place it on your stove and bring the water to a boil. Once the pot’s water is boiling, set a timer for 30 minutes. During this time, the heat and steam inside the pot will circulate around the soil container and sterilize it completely.