Drains are plumbing devices that aid in the disposal of waste water, specifically in bathrooms. With use over time, drains can accumulate particles and begin to grow bacteria, which can lead to odor problems. Since drain pipes are not closed off, the odor is allowed to rise directly into the air space of the area. A simple way to keep odor out of drains is the use of baking soda and vinegar. Baking soda is a known odor absorbent and general cleaner. Combined with the acidity of vinegar, it makes a powerful and "green" way of ridding drains of odors.
Measure out 1 cup of baking soda. Measure 1 cup of white distilled vinegar and put the vinegar in a saucepan over high heat. Heat the vinegar until it starts to boil, then turn off the heat.
Pour the cup of baking soda down the drain, followed by the cup of hot vinegar. Wait at least five minutes for the mixture to work. The smellier the drain, the longer the baking soda and vinegar should be allowed to work, and can be left to sit for up to an hour.
Fill a large pot with water and place on the stove to boil over high heat. Once the water has acquired a rolling boil, remove from the heat and pour directly into the drain. The hot water flushes the baking soda and vinegar, while the heat of the water helps to further disinfect the drain from odor-causing bacteria.