How do I get rid of these stains/dirt on my seam iron sole plate?

That is the question my hubby also needed an answer. I don't know how these stains come on the box?

I think I’ve seen somwhere online that you could use toothpaste to remove it

Apparently, all you need is a paracetamol tablet (not the capsule or soluble kind but just the ordinary tablet) and a J-cloth or similar. Heat the iron to its hottest setting and (carefully) rub the tablet on the burnt areas, wiping off the debris periodically as you go. (see video below). Other methods use baking soda, toothpaste or salt - in other words, anything which is slightly abrasive but softer than the sole plate (wire wool or pan scourers are NOT recommended) and mostly recommend a warm iron (not hot).

I was looking for it online and one video showed using toothpaste. I am yet to try it. Someone suggested cleaning with vinegar but I am not sure.

it happened to me, but mine was much more dirtier, i puted newpapers on the floor, then a lot of salt on the newspapers, and turned the steam iron on, and started ironing the salt. the salt helped to remose a lot from it.

I use domestos it's remove those stains

How can it rust? Have you ever touched it with water?

Even I don't have any idea about it..will see if somebody could give any suggestions

I usually scrape it with sand paper on mine but that might damage your's.