Remember... Shiny Side Out!!!
Thanks, good advice.
FWIW, Big Media says it doesn’t matter which side.
https://culinarylore.com/food-science:aluminum-foil-shiny-side-up-or-down/#:~:targetText=Since%20aluminum%20foil%20has%20a,and%20the%20dull%20side%20up.
As, man! Now I’ve gotta re-do MY tin hat!