The preparation of a shelf stable coconut water concentrate is described along with a method of producing a ready to drink fountain coconut water beverage from the coconut water concentrate. The resulting ready to consume fountain drink is made solely from freshly sourced or processed coconut water without adding other fruit juice, additives, enzymes, flavorings, colorings or preservatives. A coconut water stock is concentrated by an evaporation process to obtain a coconut water concentrate of at least 70°Brix having a water activity of 0.7% or below. The coconut water concentrate is microbiologically stable at room temperature without the addition of additives or preservatives, and does not require refrigeration. Water or other liquids are added to the coconut water concentrate at a ratio of between 20 to 30 parts water to 1 part stable coconut water concentrate, to form a variety of coconut water fountain drinks.