Whether avoiding a certain food type is due to an allergy, or a preference, retailers around the world are embracing the growing free-from culture. In the U.S. alone, 3.1 million people follow a gluten-free diet. 72 per cent of these are classified as PWAGs — people without celiac disease avoiding gluten.

Drying, chilling, freezing, sterilization and pasteurization describe just some methods of food preservation. However, all of these have major drawbacks — including the loss of essential nutrients and flavor.