If it comes in a plastic container, you probably won t have this problem, but if it comes as a bunch, clean it by first chopping off the stems. Then submerge it in a pot or basin full of water then drain. Keep changing the water until there is no dirt on the bottom of the pot. Dry on clean towel,, put in a bag or wrap in paper and refrigerate. Use within several days.
Spinach suffers greatly from overcooking.
Steaming is best, or you can simply put the spinach in a pot and cook it with only the water that is left on it from rinsing. To enhance the flavor of spinach, add nutmeg, mace, fresh garlic, coarsely ground black pepper or, in moderation, fresh lemon juice. Place eggs in a saucepan and cover with cold water. Bring water to a boil. Cover, remove from heat, and let eggs stand in hot water for 10 to 12 minutes.