Different toasts react to heat differently.
Angela first started doing nude modeling at age 18.
When I told her I was going overseas to shoot porn she, like everybody else, thought the porn industry was run by seedy guys from a basement who were going to abduct and rape me.
It's taken her a little while to come around to the idea.
Some kinds might like lower heat over a long time and some taste much better if the heat is more powerful, but spread out over a short period of time.