The Economic Times

Placing a piece of aluminium foil above refigerator shelf: Why more people are doing it and its benefits

Lining fridge shelves with aluminium foil is a simple, low cost habit that catches spills, reduces bacterial buildup, and keeps food fresher for longer. Backed by research on fridge contamination and foil's barrier properties, it is one of those kitchen habits that makes more sense the more you understand it.