Baking soda, also known as sodium bicarbonate, has earned its reputation as a household powerhouse thanks to its wide range of practical uses, from baking and cleaning to personal hygiene. But one of its most effective and often overlooked applications is in the laundry room. Many people underestimate just how powerful baking soda can be when used properly in washing clothes and maintaining appliances like washing machines. While it may seem like a simple pantry item, baking soda has the potential to transform your laundry routine when used the right way. At the core of baking soda’s odor-fighting abilities is its chemical nature.

As a mild alkaline substance, it works by neutralizing acidic and basic odor compounds in the air or embedded in fabrics. When added to laundry, baking soda helps balance the pH level of the water, which not only eliminates unpleasant odors but also boosts the performance of your detergent by creating the optimal environment for it to work effectively. Using about half a cup of baking soda per load is the standard recommendation, and it can make a real difference in how fresh your clothes come out. However, there are some common mistakes that reduce its effectiveness. One of the most frequent errors is not using enough baking soda. If you add too little, it won’t fully neutralize odors, especially in more heavily soiled items. Another misstep is adding baking soda into the detergent drawer, which can lead to clumping and reduce its overall impact. The best practice is to add it directly into the drum of the washer, where it can mix freely with water and detergent.

It’s also a misconception that baking soda can completely replace detergent—it should be used as a supplement, not a substitute. To properly use baking soda in your laundry, measure out half a cup and sprinkle it directly into the drum before loading your clothes. This placement ensures even distribution and allows the baking soda to interact with both the water and the detergent. For loads that are particularly smelly—like workout gear or pet blankets—you can increase the amount to a full cup. Dissolving baking soda in warm water before adding it to the drum can also improve its performance and help avoid clumps. If you’re using a top-loading washer, simply add the baking soda on top of the clothes before starting the cycle.

For front-loading machines, it’s best to dissolve it in a cup of warm water and pour it into the drum before adding the laundry. Gym clothes, in particular, benefit from a pre-soak. Combine half a cup of baking soda with a gallon of water and let the clothes sit for about 30 minutes before washing. This method helps break down tough odors and bacteria, preparing the fabric for a more thorough clean. During the wash cycle, add another half cup of baking soda for maximum freshness. Pet odors, which can be especially persistent, are also no match for baking soda. For items like pet beds or blankets, sprinkle baking soda generously over the surface and let it sit for at least 15 minutes before vacuuming.

For washable items, add half a cup of baking soda to the wash cycle. Pre-soaking is also a great option when odors are deeply embedded. Beyond clothing and fabrics, baking soda can help maintain your washing machine itself. Its gentle abrasive properties are great for removing detergent buildup and mineral deposits, which helps keep the machine running efficiently. To clean your washer, run an empty hot water cycle with one cup of baking soda. This routine maintenance can keep your machine smelling fresh and functioning well. Many people also hear about combining baking soda with vinegar. While the combo can be useful, it’s important to know how to use it correctly. In laundry, use baking soda during the wash cycle and vinegar in the rinse cycle—this keeps them from neutralizing each other and allows both ingredients to work effectively. Baking soda is also eco-friendly and budget-friendly. It’s non-toxic, biodegradable, and a safer alternative to many commercial cleaners. A large box of baking soda costs very little and can last for dozens of loads. While some viral hacks promise miracle results from baking soda alone, it’s best to view it as a helper rather than a miracle worker. It can brighten whites and soften fabrics, but it’s not a bleach replacement or a heavy-duty stain remover. Use it alongside detergent and fabric softeners for best results. Lastly, store baking soda in a cool, dry spot to keep it effective and avoid clumping. By following these expert-backed techniques, baking soda can be a simple yet powerful addition to your laundry routine that keeps clothes fresh and your machine running smoothly.