Baked clams can be made ahead of time and then reheated when ready to serve.
If you need to bake some baked clams the night before then you can do so but just make sure you place the baked clams in the refrigerator after they cool off.
Keep the baked clams refrigerated until ready to reheat and serve.
I have made some baked clams the night before and then the next day I reheated them in the oven before serving them.
Cooked clams can stay in the fridge for up to 4 days.
When storing cooked clams in the fridge you should store the cooked clams in a covered container.
When the cooked clams are stored and kept refrigerated in a covered container the cooked clams will last for 4 days.
After 4 days the cooked clams will go bad and should be thrown out even though they have been refrigerated.
For best taste and freshness you should eat any leftover cooked clams within 2 days of cooking them.
Freezing the cooked clams can be done but it's not recommended because freezing the cooked clams can cause the cooked clams to become rubbery and extremely tough which will make them hard if not impossible to eat.