If possible, allow ashes to cool in the area where you had the fire for several days. These areas are designated to contain their heat safely.
When it is time to dispose of the ashes, test to ensure the hot ashes are cooled by placing them in a cardboard box or paper bag before disposal. If the ashes are too hot, they will begin to burn through the box or bag.
DO NOT dispose of hot ashes with yard waste material. By placing ashes with yard waste, such as tree trimmings and leaves, the potential for fires increases substantially.