Does Flan Need to Be Refrigerated?

Flans can be served slightly warm, at room temperature or cold. Custards keep well in the fridge for about two days, so they are ideal to make ahead for a party. Keep them covered, as the egg custard easily absorbs any odors.

How long can flan be left out?

The short and clear answer is: it is absolutely not safe. As with any cooked food, the official safe period is 4 hours outside of the fridge. That's it, no matter if you have eggs, or anything else inside.

Can flan be left out overnight?

Can you leave flan out overnight? Probably not. When the temperature of previously cooked food is in the food “danger zone” (40 – 140 F) for any time at all, bacteria begin to grow. In that temperature range populations can double every 20 minutes—you can “do the math” for overnight on the countertop.

Chloe Bennett

Chloe Bennett

Culture, Media & Entertainment Columnist

Chloe Bennett explores the intersection of pop culture, streaming entertainment, digital trends, and contemporary lifestyle. Her weekly commentary reaches thousands of culture enthusiasts.