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The sugar in these sauces can burn and cling to the surface, making a mess and harming your pan’s seasoning. Cleanup becomes a nightmare, and your skillet might lose some of its nonstick quality.
Best choice: Cook sticky sauces in a nonstick pan or wait until your cast iron is very well seasoned.
4. Eggs — Unless You’re a Pro

Scraping them off can scratch the surface and leave behind a residue that’s tough to clean.
If you’re still building up the seasoning on your skillet, skip the eggs for now.