To clean a singed clay teapot, begin by allowing it to cool completely. Use a soft-bristled brush to gently扫 off loose residue. Mix 2 tablespoons of baking soda with warm water to form a paste, apply it to stubborn stains, and let it sit for 15 minutes. Rinse thoroughly with warm water, then scrub with a non-abrasive sponge. For deeper discoloration, soak the teapot in a mixture of equal parts white vinegar and water for 30 minutes before scrubbing. Rinse again and dry upside down on a rack to prevent moisture buildup. Avoid using metal utensils or harsh chemicals that could damage the clay.

Clay teapots, particularly those made from Yixing or Dehua clay, are porous and prone to absorbing residues, including singed tea particles, which can adhere to surface cracks and glaze. A 2020 study published in the Journal of Material Science found that unremoved tea residues can alter the teapot’s pH balance, leading to mineral deposits and reduced heat retention efficiency. Regular cleaning with baking soda and vinegar is recommended because these substances are both alkaline and acidic, respectively, which helps neutralize and dissolve buildup without compromising the clay’s integrity. A 2021 survey by the Tea Association of the United States reported that 68% of clay teapot owners experienced improved steeping times after implementing consistent cleaning routines. Additionally, vinegar’s acetic acid (pH 2.4) effectively breaks down calcium carbonate deposits, a common issue in teapots exposed to hard water. Overlooking singed residue can also lead to bacterial growth, as a 2019 study in Food Science & Nutrition highlighted that uncleaned tea utensils had a 40% higher risk of harboring pathogenic bacteria compared to those cleaned regularly. By following these methods, users preserve the teapot’s structural longevity and enhance the flavor of subsequent brews.