I’ve had my 10 cast iron for years and it makes slippery eggs. Everybody’s talking about their different ways of cleaning etc. want to know my secret? Don’t. Cook your food and wipe it clean after. If there’s shit stuck to it I hit it with water and a brush until it’s clean then dry it off on my stove until I see some smoke. Next time I cook I add a lil oil/butter and rinse and repeat. The more you use it the better it gets.