Waste is not uncommon in the kitchen. Often, food scraps, oils and fats, as well as other things that have no place in the sink, end up there. All of this then ends up in the waste pipe. It all builds up until it forms an impenetrable plug. It’s not just a plumber who can help with getting rid of it, but also a few tried and tested home techniques and methods. Just watch out for the combination of certain substances. If not handled and handled correctly, the kitchen can literally be a disaster instead of a cleaned up drain.
Reduce waste
As a precaution, it’s best to insert a metal or silicone strainer into the drain to prevent plate residue (as well as hair or dirt from the mop rinse) from staying in the sink and flowing further down the pipes. Gather the settled residue in the sink into the strainer and dispose of it in the trash, which should ideally be located nearby.
Sound
A clogged sink can be cleaned by a bell, which is a simple structure consisting of a rubber cap and a wooden handle. You put the rubber cap on the sink opening (you have to fill it with water first so it can suck in dirt from the inside), press it in, and then immediately pull the handle outwards. This way you are often entertaining basic dirt.
Citron Juice
The juice you squeeze from half a lemon is a good helper too! Pour it directly into the sink and leave it for about 20 minutes, then rinse thoroughly, preferably with hot running water. This will help eliminate germs while providing a pleasant, fresh scent.
Baking Soda and Vinegar
If lemon hasn’t worked and the smell remains as well as the clogged drain, baking soda can help. Pour half a glass of baking soda down the drain, and after about 20 minutes, cover with (but not too much) hot water with a few drops of vinegar. Suddenly, you’ll hear the frothing of the soda starting to do its job. After another 10 minutes, wash the sink with warm running water. The stumbling block, however, would be if you were to pour only hot vinegar with the baking soda. The frothy chemical reaction that follows is reminiscent of a familiar fairy tale. And you’ll be cleaning up instead of cleaning up for dozens of minutes.
Source: https://www.homeserve.com/en-us/blog/how-to/unclog-kitchen-sink