Used coffee grounds in fridge: How this simple kitchen hack works

If you have a habit of throwing away coffee grounds after making your morning brew, you may want to pause. A simple household trick involves placing used coffee grounds in an open jar inside the fridge to help deal with unpleasant food odours.

The method has gained attention because it reuses something that would otherwise go into the bin and does not require buying a separate deodorising product.

But there is one important condition: the coffee grounds must be dried properly before they go anywhere near your refrigerator.WHY PUT USED COFFEE GROUNDS IN THE FRIDGE?

Coffee grounds have a porous structure that can retain some volatile compounds responsible for unpleasant smells. Their natural aroma can also reduce the perception of strong food odours inside the refrigerator.

This makes them a useful, low-cost natural fridge deodoriser. However, the effect depends on factors such as the amount of coffee used, moisture levels and the source of the smell. Coffee grounds do not remove the actual cause of a bad odour.HOW TO USE THE COFFEE GROUNDS FRIDGE HACK

The process is simple, but drying is the most important step. After brewing coffee, drain the used grounds properly.Spread them on a plate or tray and allow them to dry completely.Put around two to four tablespoons of the dried grounds into a clean, open jar.Place the jar on a stable shelf inside the fridge.Replace the grounds once they become damp or lose their aroma.

The container should remain open, so the grounds can come into contact with the air inside the refrigerator.WHY WET COFFEE GROUNDS SHOULD BE AVOIDED

Damp coffee grounds can encourage mould growth, especially when left inside a closed or poorly ventilated container. That is why used grounds should be dried thoroughly before being reused as a deodoriser.

If the fridge continues to smell bad, check for expired food, spills, dirty shelves, drawers or residue around the rubber seals. The coffee hack can help manage lingering smells, but it cannot replace proper fridge cleaning.COFFEE GROUNDS ARE NOT A COMPLETE ODOUR SOLUTION

While coffee grounds can help with ordinary food smells, they are generally a supplementary measure rather than a powerful replacement for conventional odour absorbers such as baking soda.

Their main advantage is convenience: they are inexpensive, easy to prepare and give leftover coffee grounds a second use instead of sending them straight to the bin.- EndsPublished By: vaishnavi parasharPublished On: Sep 12, 2026 13:13 IST