To avoid getting your burger burned while waiting for the cheese to melt, there's an easy trick to avoid that, after you flip the burger, add the cheese right away, otherwise if you do it later, for example, if it's 100/100(top and bottom), then you add cheese, it will burn the bottom while melting the cheese.

*IMPORTANT*

To add a slice of cheese on a burger, it needs to be in a ingredient container.