POP smokes whole mustard seeds with applewood in our smokehouse for 7 hours. Infused with a tomato cider, fermented and barrel-aged for maximum mustard flavor. Sweet, savory and a kiss of smoke and s a crunchy POP texture that brings excitement to your mouth. Our mustards also make your gut health happy. POP Mustards are prebiotic and protein packed. Each jar contains 19 grams of protein! International Flavor Awards winner. GLUTEN FREE