We stand behind our products and we truly mean that. If you are dissatisfied with your purchase, we will gladly replace it for you. Our products are all natural, and we state that the treats are best consumed within 30 days of purchase, and the jerky before the expiration date. However, if within the 30 days for treats, or before the expiration on the jerky you are to find any mold please let us know and we will make the situation right. We stand behind our customer service and want to make sure you have as good an experience as possible.