A regular pancake dough made with flour, milk and eggs is fine if kept for 2 to 5 days in the refrigerator. However, it depends on the expiration dates printed on the product packaging. As long as the milk and eggs are fresh, the standard pancake mix will last in the refrigerator for up to four days. The shelf life of pancake dough will largely depend on how it is stored.
The pancake mix can be completely frozen and, as is often the case, this will significantly increase its shelf life. Many people like to cook a large amount of pancakes and then freeze them for later eating, instead of preparing the pancake batter ahead of time. It also means that if you don't have a big enough appetite to eat 12 pancakes or more than once, you can spread your pancake feast over a few days. If this type of recipe appeals to you, the best thing to do is prepare the pancake batter the night before.
In general, if you use fresh ingredients with no substitutes, you can expect the pancake batter to last a day or two in the refrigerator and up to 3 months in the freezer, although that comes down to just one month if you still want pancakes that taste great. Unfortunately, despite its popularity, pancake mix isn't one of those timeless foods that will remain edible when hell freezes over. So, if the milk in your pancake mix has gone bad, you'll probably notice it, if not by the smell, certainly by the first bite. To give your pancakes a little more protection, you can group all the wrapped pancakes individually.
Some pancake lovers even argue that by cooling the pancake dough, you can produce even fluffier pancakes. When done correctly, it's perfectly fine to use pre-made pancake dough, although the pancakes may not be as fluffy as they could have been when the mix was originally made. If you're not sure if you're storing your pancake mix properly, you might not just end up with sad-looking pancakes.