Citric acid is a white powder in packets that costs next to nothing but can replace a dozen expensive household chemicals. It is non-toxic, has no strong odor (unlike vinegar), and deals with limescale, grease, rust, and limescale. In 2026, when ecology and economy are trends, lemon juice becomes a must-have in every home. We tell you how to use it wisely and without harming the equipment. Cleaning kettles and coffee makers The most popular application is removing limescale. Fill the kettle with water (about 2/3), add 1-2 tablespoons of citric acid (for severe cases - 3). Boil, let stand for 15-30 minutes, then drain. Rinse with clean water. For coffee machines (drip, pod): dilute 20-30 g of acid in a liter of water, run through the cycle without coffee, then 2 cycles with clean water. Important: do not use citric acid in enameled kettles (it may damage the enamel if held for a long time). For stainless steel and glass - ideal. Removing limescale in the washing machine Limescale on the heating element shortens the life of the machine. Once every 3-4 months, pour 100-150 g of citric acid into the detergent compartment. Run an empty wash cycle (without laundry) at the maximum temperature (90-95°C). Additional rinsing is mandatory to remove acid residues. After the procedure, wipe the rubber seal and drum. Important: do not do this too often (more than once a month) - the aggressive environment may damage the rubber parts. Fighting limescale in the bathroom and kitchen Mix a packet of citric acid (20 g) with 200 ml of warm water in a sprayer. Spray on contaminated surfaces (faucets, showerheads, tile, glass). Leave for 10-15 minutes, then rinse with a sponge and water. For severe deposits, make a paste: acid + a little water to the consistency of porridge. Apply, rub with a brush. Do not use on marble, limestone, aluminum (reaction). For chrome-plated details - safe. Cleaning irons from limescale Dilute 1 teaspoon of citric acid in a glass of water. Fill t ... Read more