Andrea Blazquez

Coffee grounds mixed with bicarbonate of soda are recommended as an effective way to neutralise odours in fridges, bins and cars, and to deter pests on patios or windowsills. Experts note that coffee’s nitrogen content helps absorb smells, while horticultural specialists highlight its ability to repel insects such as mosquitoes, wasps and bees. The method involves drying used coffee grounds, combining them with bicarbonate of soda and placing the mix wherever needed.