Haggai 2:12-13

if someone carries meat that has been set aside as holy in a fold of his cloak; and then he lets his cloak touch bread, stew, wine, olive oil or any other food; does that food become holy too?'" The cohanim answered, "No."

Then Hagai asked, "If someone who is unclean from having had contact with a corpse touches any of these [food items], will they become unclean?" The cohanim answered, "They become unclean."