Activated walnuts are coated in a blend of spicy wasabi and sweet onozaki barley miso then are sprinkled with savoury sesame seeds nature has contrived so that the nut may survive insects microbes animal predators etc until proper growing conditions are present naturersquos defense mechanism for nuts and grains includes nutritional inhibitors and toxic substances such as enzyme inhibitors phytates and tannins these anti nutrients are what cause that bitter after taste in the common