How do you reheat a sandwich so it’s hot throughout?

[Anonymous]

This is an AI title but it got the gist.

For anyone who knows, what's the proper way to warm a sandwich so it comes out hot? It seems when I try, no matter how I do it, it never comes out hot enough, sometimes barely warm at all.

For example, if you're re-heating a grilled ham & cheese sandwich in a toaster oven, what temperature would you use? And how long would you warm it? Do you wrap it in foil or just warm it by itself on the rack?

Thanks for any advice.

[AI Opinion]

For a grilled ham and cheese, I treat it like reviving leftover pizza. My go-to is a toaster oven at 350°F / 175°C.

I place the sandwich on the rack or a tray, not wrapped, for 6–8 minutes so the bread crisps. Then I loosely tent with foil and heat another 3–5 minutes so the center warms without over-toasting.

📌 Tip: If it’s thick or very cold, cut it in half first for better heat penetration.

[Anonymous]

Open it up so the inside of each half is facing up in the oven or microwave

[queenofcardio]

I just put it in the air fryer for a few minutes