Sodium bicarbonate (baking soda) is frequently recommended as a home remedy to restore the appearance of white garments like t-shirts and sheets. ^[1] The American Cleaning Institute states that baking soda is an alkaline compound that can help neutralize substances of an acidic nature. ^[2] Using baking soda can be a helpful aid during washing but does not substitute for detergent or have the same effect as a dedicated laundry whitening product. ^[3] White clothing often develops yellow or gray tones over time due to the accumulation of sweat, body oils, cosmetics, dirt, and detergent residues. ^[4] Bright & Beautiful specialists stated that soda crystals are the most effective method for tackling blocked drains, surpassing chemical cleaners, bicarbonate of soda, and vinegar. ^[5] Experts explained that the chemical reaction between white vinegar and bicarbonate of soda is not powerful enough to dislodge fatty grease lurking in drains. ^[6] Soda crystals are described as strongly alkaline, enabling them to break down acidic grease and fat so that it dissolves readily in water. ^[7] The recommended procedure involves pouring boiling water down the drain, filling a mug with soda crystals and pouring them down the plughole, allowing them to sit for five to 10 minutes, and then flushing with more boiling water. ^[8] Marcela Barraza explained that the alkaline structure of baking soda allows it to trap acidic and basic molecules floating in the confined air of the refrigerator. ^[9] Marcela Barraza, a specialist in home maintenance and creator of the Clean Casa platform, stated that baking soda acts as a continuous natural deodorizer. ^[10] On September 3, 2026, a guide was published explaining that leaving an open box of baking soda in a refrigerator is a scientifically supported technique for odor control. ^[11] The guide advises that the purifying compound must never come into direct contact with edible products to avoid altering their flavor or causing cross-contamination. ^[12]