Dish soap mixed with hot water may be more effective than traditional methods for unclogging drains blocked by cooking residues. According to recent reports, dish soap can be sufficient to clear drains clogged with food fats, while a vinegar and baking soda mixture produces carbon dioxide and water. However, the surfactants in dish soap directly target oily deposits, making it more effective on certain types of clogs. This method is most useful for recent blockages caused by the accumulation of fats and oils. When vinegar is combined with baking soda, an acid-base reaction occurs, releasing carbon dioxide and creating foam. Although this reaction gives the impression of cleaning, the foam does not effectively remove the oily residues stuck to the inside of the pipes. For drains clogged with hardened cooking deposits, this method remains only superficial. Dish soap, on the other hand, works through a different mechanism involving its surfactants. At the molecular level, surfactants in dish soap have one end that binds to fats and another that attaches to water. When mixed with hot water, these molecules break down the oily masses and keep them suspended in the liquid, allowing them to be flushed away with the water flow. This is the same principle that makes dish soap effective at cleaning a frying pan. To use the method, about 120 milliliters of dish soap should be mixed with half a liter of hot water. The water should not be boiling, as it could damage PVC joints in the pipes. According to the Norwegian site Dagens.no, the solution should be poured slowly into the drain and left to sit for a few minutes before rinsing with lukewarm tap water. If the flow remains slow after the first attempt, the process can be repeated. As a preventive maintenance technique, this method can be used once a week in kitchen sinks where oil is regularly used. No harsh chemical products are needed. However, this method is not effective for clogs caused by solid materials like hair, scale, or hardened food debris. In such cases, a plunger or a mechanical snake might be more suitable. It also won't work if water no longer flows through the drain at all. For drains clogged over a long period, the cooking deposits may have solidified and can't be dissolved by the detergent without mechanical help. In these cases, professional intervention may be necessary. To prevent clogs, it is better not to pour cooking oils directly into the sink. Over time, this habit can lead to persistent blockages, even with the use of degreasing soap. A simple solution is to collect oily residues in a glass jar under the sink before disposing of them. Additionally, placing a filter on the drain stopper can help prevent solid debris from entering the pipes.