Your pie’s luscious lemon filling is basically a lemon-curd custard. That means it’s cooked with egg yolks and relies on them for its silky texture.
If that filling sits at room temperature for more than two hours, you’re rolling the dice with bacteria. Think of it as a party invitation for salmonella—the uninvited guest that ruins everything.
So yes, you could leave it on the counter for a quick afternoon snack session, but please don’t push it past the two-hour mark. Your stomach will thank you.
The Meringue Has a Secret (It’s Weepy and Fragile)
Now, the meringue! That beautiful, toasted meringue is a drama queen. It’s made of egg whites and sugar, and it hates moisture.
Refrigeration actually helps meringue. The cold dry air keeps it from turning into a sad, sticky puddle of “weep” (pun intended).
Think of it this way: a room-temperature meringue sweats. A chilled meringue stays proud and fluffy. Refrigeration stops the tears.
