Will it be ok to eat sloppy joe's 3 days later?

Yes, it is generally safe to eat sloppy joes three days later if they have been properly stored in the refrigerator at or below 40°F (4°C). Make sure to check for any signs of spoilage, such as an off smell or unusual texture, before consuming. Reheat thoroughly to an internal temperature of 165°F (74°C) to ensure food safety. If in doubt, it's best to err on the side of caution and discard them.