Key lime pie can be left out for up to two hours before it needs to be refrigerated. Beyond that, the risk of foodborne illness increases. If you are leaving key lime pie out for an extended period of time, it is best to keep it in a cooler with ice packs.
There’s nothing quite like a slice of key lime pie. The citrusy, tangy flavor is the perfect way to end a meal. But what happens if you leave it out for too long?
Unfortunately, key lime pie is not something that can be left out for extended periods of time. The dairy in the filling will start to spoil and the crust will become soggy. After about four hours, your key lime pie will no longer be safe to eat.
So if you’re planning on serving key lime pie for dessert, make sure you do it closer to the end of your meal. That way, you can enjoy every last bite!
How Long Can Key Lime Pie Be Refrigerated
Assuming you’re talking about an unbaked key lime pie, it can be refrigerated for up to two days. After that, the crust will start to get soggy and the filling will begin to break down. If you want to extend its life, you can freeze the pie for up to six months.

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Does a Key Lime Pie Need to Be Refrigerated?
No, a key lime pie does not need to be refrigerated. Key lime pie is made with milk, eggs, and lime juice, which are all ingredients that do not require refrigeration. The only time you would need to refrigerate a key lime pie is if it has been out of the fridge for more than two hours or if it is made with whipped cream instead of meringue.
How Can You Tell If Key Lime Pie Has Gone Bad?
If key lime pie has gone bad, the filling will be watery and the color will be off. The crust may also be soggy.
How Long is a Key Lime Pie Good For?
A key lime pie is typically good for 3-4 days in the fridge. However, if you want your key lime pie to last a bit longer, you can freeze it. Frozen key lime pie will last for 2-3 months.
How Do You Store Key Lime Pie Overnight?
If you want your key lime pie to last more than a day, you will need to store it in the fridge. This is because key lime pie contains milk and eggs, which can spoil if left out at room temperature. To store your key lime pie, wrap it tightly in cling film or aluminium foil and place it in the fridge.
It should keep fresh for 2-3 days.
Key Lime Pie
Conclusion
If you’re wondering how long key lime pie can be left out, the answer is not long at all. This dessert is made with milk and eggs, so it will spoil quickly if it’s not kept cold. Key lime pie should be refrigerated as soon as it’s cooled and eaten within two days.
After that, the quality of the pie will start to decline and it won’t taste as good. So if you want to enjoy this delicious treat, make sure to eat it while it’s fresh!