The kitchen siphon often suffers from being clogged with leftover food and greasy dishwashing detergents. Do not rush to disassemble the structure, because there is a way that will save you from the not very pleasant process of cleaning the glass.
If water collects in the sink, it must first be drained or soaked with a sponge. This is necessary in order to free the passage into the drain.
After half an hour, pour soda (200 grams) into the drain and pour vinegar (200 ml) over it. The reaction will be classic: foaming, hissing and dissolving pollution. To enhance the effect, take a plastic tube and "cover" it in the holes so that the clogging passes further.
Then pour hot water and you won't have to wait, because the water will drain quickly.
It is advisable to clean the sink like this once a month for prevention.