TIL there's a huge debate over preheating air fryers before adding food

Last Wednesday I made sweet potato fries without preheating and they came out soggy. The next day I let it run for 3 minutes empty first and they were perfectly crispy. But my buddy swears preheating dries out chicken wings and makes them tough. So which is it supposed to be? Does the preheat help or hurt depending on what you're cooking? I feel like every recipe online says something different. Has anyone else noticed a big difference one way or the other?

2 comments

2 Comments

webb.val27d ago

Wonder if the moisture content of different foods changes the rules on preheating?

price.alice27d ago

Moisture content is just one piece of a bigger puzzle about how heat moves through things (kind of like how a wet sponge heats up slower than a dry towel). The real pattern I see is that people treat preheating like a magic checkbox, but it's really about understanding how your tool and your food interact. For crispy foods like toast or pizza crust, you want that high heat right away to lock in structure, but for something like a frozen casserole, a gradual warm up lets the inside thaw without burning the outside. It's the same reason you wouldn't blast a frozen steak on high heat - the moisture changes how energy spreads through the food. Preheating rules are just a shortcut for people who don't want to learn the physics of their own kitchen (and honestly, most of us don't have time for that). So the moisture question is totally valid, but it's just one variable in a whole system of how heat, time, and food texture work together.