HuwsNursey talks about safety concerns with growing food in old tires.

Summary:

• Growing food in plastic containers can leech harmful chemicals into the soil, which will then be absorbed into the food.
• There are similar concerns with growing food in tires.
• New York State Department of Environmental Conservation: leaching of chemicals from partially burned tires, not whole tires.
• The dark color absorbs more heat so in hot and tropical climates, paint the tires white. This will help stop the soil from baking.
• Organically grown vegetables in old tires may contain fewer chemicals than industrially grown food using pesticides.