Pan's Mushroom Jerky is a vegan, paleo-friendly, soy-free, gluten-free, and kosher jerky made from shiitake mushrooms. The recipe originated from a decades-old family recipe that has been updated with new flavors and simple, organic ingredients. Michael Pan developed the product for months in his kitchen in the Pacific Northwest while working full time as an engineer. Today, Pan's Mushroom Jerky is produced in Portland, Oregon, and is available in over 3,500 stores in the United States.