Drying is the world’s oldest and most common method of food preservation. It’s known to inhibit the growth of bacteria, yeasts, and mold through the removal of water.
Traditional methods of drying, like sun-drying or air-drying, remove water from the meat through evaporation in naturally warm climates, between 110-130 degrees. More modern methods include the use of electric food dehydrators, which circulate air and heat around 150 degrees and higher. Freeze-drying is another method which removes moisture in a low-temperature, vacuumed-sealed chamber.
One of the greatest advantages of drying at a low temperature is that most nutritional properties, vitamins, minerals and proteins are preserved, allowing your pup to benefit from them when you feed him our food. By keeping the temperature low, air-dried foods can also be rehydrated back to their original form - which you cannot do with cooked or processed treats.