Yaky Charms are made using techniques by the people of the Himalayas, derived from an ancient recipe to convert milk into a hard cheese. The same method is practiced at our farm in Washington State to create an authentic treat that is 100% natural without any preservatives nor additives. Now the same Himalayan treat in the form of charms are available to you and your dog, handmade in the USA. On High Power, microwave for about 1 minute. If the pieces do not pop, Microwave for another 10 seconds s needed. Allow Yaky Charms to cool for at least 2 minutes before feeding.