You brush with ketchup?
ketchup.
I use that to clean my weed pennies.
Can imagine what it does for your teeth.
(and that's the question @SF was referring to, whether you brush cold or warm. (refrigerate the ketchup or leave out.)
Nasty to eat warm ketchup, only cold.
Eating hot chicken cutlets or schnitzel, pasta. You want nice cold kethup.