Temperature and Hygiene
Temperature is the most important factor for killing pathogens in laundry[1].
Myth: Cold water washes are just as hygienic as hot
Reality: Cold water alone does not reliably kill fungi and some bacteria[2]. For everyday clothes without contamination, cold water with detergent is fine.
Reality: Cold water alone does not reliably kill fungi and some bacteria[2]. For everyday clothes without contamination, cold water with detergent is fine.
Detergent Myths
Myth: More detergent means cleaner clothes
Reality: Excess detergent leaves residue that can trap bacteria and odors. Follow package directions based on load size and soil level.
Reality: Excess detergent leaves residue that can trap bacteria and odors. Follow package directions based on load size and soil level.
Myth: Fabric softener is necessary
Reality: Fabric softener coats fibers to reduce static and soften feel but provides no cleaning benefit. Some people find it causes skin irritation.
Reality: Fabric softener coats fibers to reduce static and soften feel but provides no cleaning benefit. Some people find it causes skin irritation.
Practical Hygiene Tips
{?|high heat in a dryer further kills pathogens that survive washing - air drying is effective for regular clothes but less so for contaminated items}
{?|run an empty hot cycle with bleach monthly to prevent mold and bacterial buildup in the drum and seals, especially for front-loaders}
{?|wash underwear, towels, and gym clothes separately from regular clothing when hygiene is a concern - these items have higher bacterial loads}
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References
- Abney SE, Ijaz MK, McKinney J, Gerba CP (2021). Laundry Hygiene and Odor Control: State of the Science. Applied and Environmental Microbiology. [DOI]
- Hammer TR, Mucha H, Hoefer D (2011). Infection risk by dermatophytes during storage and after domestic laundry and their temperature-dependent inactivation. Mycopathologia. [DOI]