This is a popular travel tip circulating online (especially on social media and sites like TikTok/Reddit): Upon checking into a hotel room, boil water in the electric kettle (multiple times if possible) and pour the boiling water into the toilet bowl.
The Claimed Reasons
- Kills Germs in the Toilet → Hotel bathrooms get rushed cleanings during high turnover. Housekeeping might not thoroughly disinfect the bowl every time. Boiling water (212°F/100°C) can kill many bacteria and pathogens on contact, giving you extra peace of mind that the toilet is sanitized.
- Cleans the Kettle Too → Previous guests might have misused the kettle (e.g., boiling underwear, cooking food, or worse—gross stories abound). Boiling water multiple times sterilizes the kettle before you use it for tea/coffee.
It’s presented as a quick, free way to “self-sanitize” without needing cleaning supplies.
Does It Actually Work?
- For the Toilet: Yes, boiling water can kill some surface germs temporarily. However, it’s not as effective as proper disinfectants (like bleach-based cleaners used by housekeeping). Germs can recolonize quickly, and it won’t remove stains or residue.
- For the Kettle: Boiling does sterilize it effectively for immediate use.
Important Warnings: Don’t Do This!
Plumbing experts and fact-checks strongly advise against pouring true boiling water into the toilet:
- Risk of Cracking the Porcelain: Sudden extreme heat causes thermal shock, potentially cracking the bowl (expensive repair—hotels might charge you!).
- Damage to Seals/Pipes: Can melt wax rings or harm PVC components, leading to leaks.
- Many sources recommend hot (not boiling) water only for unclogging, and even then cautiously.
Safer alternatives for toilet peace of mind:
- Use disposable toilet seat covers (or toilet paper as a barrier).
- Wipe the rim/seat with disinfectant wipes (bring your own).
- Request a room change if it looks unclean.
- Flush first and use the hotel’s cleaning—most reputable places do thorough jobs.
This hack is more urban legend than must-do—hotels follow strict protocols. Focus on handwashing and common-sense hygiene instead!