This is due to the natural curing process of the date. Film or spots may be removed with a damp cloth or the date may be eaten as is. Dates are a prime natural source of Potassium. The Potassium to Sodium ratio in dates is an astounding 1300 to 1. Dates also contain many of the Vitamins as well as many minerals in addition to Potassium.
Dates are also high in Phosphorus.
There is more iron in a date than in an equal quantity of raisins. The high enzyme content of raw and unheated dates insures proper assimilation of all its vitamins and minerals. The date is a storehouse of live and biologically active nutrients. How to make the famous Sahara date shake at home Remove pits from three large, soft, Medjool dates and place in a blender with three scoops French Vanilla Ice Cream and about four ounces of milk. Blend until smooth and serve with a dollop of real whipped cream on top.