I've read that the not/shiny side of foil is just a result of the making process, also keeping aluminium in touch with food or wound doesn't sound very healthy to me.

But I can totally relate to touching a skillet, I burn myself basically every day and once forgot myself and wiped surface of electric glass stove right after I put away pot🫠 left a part of my palm there🫠 and will try🫠 so thanks for interesting tip👍😊