Jeff, thanks for giving me another shot at answering your question. After 3 days you really should not have an issue other than a very very faint smell that I believe most people could not detect without pulling the sealed, bagged meat out and sniffing it extremely close up. To date I have aged multiple sub-primals purchased from multiple retailers and I have yet to experience the off smell after 3 days that you described. I will go back to my revised stance that there is a chance your meat may have had an issue before it ever went in a UMAi Dry bag. Keep a “nose on it” and after another day or two you might want to decide to return it to your retailer for a replacement.