Grandpa's workshop wisdom

Grandma buys home brand flour and bread crumbs,
but Grandpa thinks it is crap.
He takes it out into the workshop, and keeps the flour in a
bucket. When he gets oil in his hands, he puts them in the
flour, and it absorbs the oil. When he spills oil on the
floor, he tips bread crumbs on it. Just as well, as
Grandma reckons she is gunna burn his beloved EH if
he makes another mess...