Depends on what it is. Fish and most stuff like that I fry at 350. Stuff that you want to cook through before it gets too brown on the outside, like chicken or tater logs, I'll do at 325 or so. Stuff like coconut shrimp will also scorch quick at higher temps. French fries (homemade,) I usually fry once at around 275-300 until they're blond, then drain and cool them, and fry them again at 375 until they're crisp. The double frying makes a huge difference.Why such a low temperature? To keep splatter down? Most anything I deep fry has been in the 350-375 range. My son got me one for Christmas and I've been frying anything I can get in there as of late...