This sounds like a riddle!

The answer is likely: Baking soda

Here’s why:

Baking soda is a natural abrasive that can effectively clean and deodorize fridge shelves.

No vinegar needed: The riddle specifically mentions “no vinegar needed,” highlighting the use of baking soda as the key ingredient.

You can make a paste with baking soda and water to scrub the fridge shelves and remove any stubborn grime or stains.