Back Country Cuisine freeze-dried meals are formulated to meet the high energy needs of outdoor activities. They provide a careful balance of carbohydrates and sugars for instant energy, protein to replenish exhausted muscles and oils and fat to provide an energy store (oils and fats are kept within the recommended maximum of 30% of total energy). In the freeze drying process, crystals of frozen ice in the food are sublimed (evaporated) to water vapour in a vacuum chamber. The result is a completely dry product that does not shrink during the drying process. When prepared for eating, the water quickly gets into the pores left by the ice crystals to give a juicy, tender food product. After packing, the food is heat-sealed in foil pouches from which all the air has been removed and replaced with nitrogen gas. This keeps the food safe and flavoursome for at least three years without the need for preservatives. Features 2x 308g serves: 175g packet weight + 440mL water 1528kj / 365 calories per serve 12.6g protein per serve 3 year shelf life No added MSG.