If you're in a hurry and need to grab some lunch on the go, you may be wondering if it's safe to keep your sandwich from Subway overnight in the fridge. The answer is yes, you can safely store your sandwich in the refrigerator for up to 24 hours. Just be sure to wrap it tightly in plastic wrap or place it in a airtight container so that it doesn't dry out.
If you have leftovers from your meal at Subway, you can also refrigerate them for up to 48 hours. Be sure to reheat thoroughly before eating as well.