clean your spinach leaves by filling a large bowl with cold water and then swish the leaves of the spinach back and forth in the water to shake the dirt off and into the water. Remove the leaves from the water and place them into a colander. Empty the bowl of water and repeat filling with water and swishing the leaves again to make sure that all of the dirt and debris has been removed from the leaves. Continue this process until the water is clear and no signs of dirt remain. Drain leaves in colander or pat dry with a paper towel before using.