Dish sponges
Sitting next to the sink, constantly damp, and regularly exposed to food particles, dish sponges are a breeding ground for bacteria. Their porous surfaces provide the perfect environment for microbial growth.
Research by the NSF, a non-profit public health and safety organization in the US, shows that after just two weeks of use, a single sponge can contain millions of bacteria, including coliform bacteria associated with fecal contamination.
A report from the US National Institute of Standards and Technology (NIST) also identified Salmonella and Campylobacter, two common food poisoning culprits, on household sponges.
To minimize risk, experts recommend weekly sanitizing sponges in the microwave, with vinegar, or in the dishwasher. Replace them if they retain an odor after cleaning. Also, use separate sponges for different tasks, especially when handling raw meat.
Cutting boards
Cutting boards can become reservoirs for bacteria if knife grooves develop during use. According to the US Centers for Disease Control and Prevention (CDC), bacteria like Salmonella and E. coli can survive for hours on dry surfaces and easily cause illness if the board isn't cleaned properly.
Therefore, experts advise using separate boards for raw meat and vegetables. Wash them thoroughly with hot, soapy water after each use, rinse well, and air dry completely. Replace boards with deep, difficult-to-clean grooves to prevent bacterial buildup.
Kitchen towels
Reusable kitchen towels readily accumulate bacteria because they're frequently used to wipe hands, clean surfaces, or pick up dropped food.
Research from the University of Arizona's College of Public Health (US) indicates that bacteria can persist on cloth towels for hours. Use separate towels for different purposes, wash them in hot water with bleach or disinfectant, or switch to disposable paper towels if possible.
Cell phones
Cell phones are among the most frequently touched objects, often accompanying us everywhere, even to the restroom. The device's warmth and continuous use create ideal conditions for bacterial growth.
Research from the University of Manchester (UK) found Staphylococcus aureus, bacteria that can cause skin and respiratory infections, on many phones. Experts recommend limiting phone use in the restroom, washing hands frequently, and wiping phones with a damp microfiber cloth and mild soap, avoiding harsh chemicals or direct sprays.
Bath mats
Bath mats are frequently damp after use, creating an environment conducive to bacterial and fungal growth. Hanging them up after each shower and washing them weekly in hot water can help mitigate this risk.
Some experts recommend wooden or diatomaceous earth bath mats, which dry quickly and retain less moisture, thus reducing the likelihood of bacterial accumulation.
Nail clippers and other manicure tools
Tools like clippers and cuticle pushers can transmit bacteria if not properly cleaned. Common pathogens include Staphylococcus aureus (including the drug-resistant strain MRSA), Pseudomonas aeruginosa (which causes green nail syndrome), and Mycobacterium fortuitum (linked to infections from manicures or pedicures).
Experts advise bringing personal tools to salons or inquiring about sterilization procedures. Reputable establishments should be transparent about their hygiene practices.
Ngoc Ngan (According to CNA)
