Nonperishable food and cash donations from visitors are collected on site. In August 2007, Amazon announced AmazonFresh, a grocery service offering perishable and nonperishable foods. Food for the trip had to be compact, lightweight, and nonperishable. Explorers appreciated its lightweight, nonperishable, nourishing qualities, and they took malted milk on treks worldwide. Thus, it has the benefit of being an easily portable, nonperishable, self-contained food. Thus, it has the virtues of being an easily portable, nonperishable, self-contained food.