Any cookware, especially those made of stainless steel, tends to get dirty.
Fortunately, once you learn the life hack for cleaning it, you will no longer consider this phenomenon as a problem.
In addition to the fact that the method we will discuss is simple, you will only need available ingredients for it - citric acid, soda, peroxide and dishwashing liquid.
First, fill the kettle with water and add a teaspoon of lemon juice.
Wait until the liquid boils, then leave the kettle with boiling water inside for 5-7 minutes.
In the meantime, prepare a cleaning solution by mixing 3 tablespoons of baking soda with the same amount of hydrogen peroxide, then adding 1 tablespoon of dishwashing liquid.
Using a sponge, apply the resulting composition to the contaminated surface.
Let the kettle stand like this for some time - from 10 to 20 minutes (the exact time depends on the degree of contamination), after which it should be rubbed and the remaining product washed off with water.