Listen Live
Donate
 on air
Schedule

KCRW

Read & Explore

  • News
  • Entertainment
  • Food
  • Culture
  • Events

Listen

  • Live Radio
  • Music
  • Podcasts
  • Full Schedule

Information

  • About
  • Careers
  • Help / FAQ
  • Newsletters
  • Contact

Support

  • Become a Member
  • Become a VIP
  • Ways to Give
  • Shop
  • Member Perks

Become a Member

Donate to KCRW to support this cultural hub for music discovery, in-depth journalism, community storytelling, and free events. You'll become a KCRW Member and get a year of exclusive benefits.

DonateGive Monthly

Copyright 2025 KCRW. All rights reserved.

Report a Bug|Privacy Policy|Terms of Service|
Cookie Policy
|FCC Public Files

Back to Good Food

Good Food

Dissecting the Five Second Rule

You drop a tasty cookie on the floor. Shouting, "Five seconds!" you frantically pick it up, blow on it and pop it in your mouth –- with the notion that if something touches the floor for less than five seconds, it's still clean and safe to eat.

  • rss
  • Share
By Evan Kleiman • May 12, 2014 • 1 min read

You drop a tasty cookie on the floor. Shouting, "Five seconds!" you frantically pick it up, blow on it and pop it in your mouth –- with the notion that if something touches the floor for less than five seconds, it's still clean and safe to eat. Noted food scientist

Harold McGee, author of

On Food and Cooking: The Science and Lore of the Kitchen

and

The Curious Cook: More Kitchen Science and Lore, tested the "five second" rule and wrote about his findings in the

New York Times. Want to discover more kitchen science? Check out

Harold's website.

  • https://images.ctfassets.net/2658fe8gbo8o/AvYox6VuEgcxpd20Xo9d3/769bca4fbf97bf022190f4813812c1e2/new-default.jpg?h=250

    Evan Kleiman

    host 'Good Food'

  • https://images.ctfassets.net/2658fe8gbo8o/AvYox6VuEgcxpd20Xo9d3/769bca4fbf97bf022190f4813812c1e2/new-default.jpg?h=250

    Gillian Ferguson

    Supervising Producer, Good Food

  • https://images.ctfassets.net/2658fe8gbo8o/AvYox6VuEgcxpd20Xo9d3/769bca4fbf97bf022190f4813812c1e2/new-default.jpg?h=250

    Laryl Garcia

    Senior Director, Good Food

  • KCRW placeholder

    Sarah Rogozen

    Associate Producer, Good Food

    CultureFood & Drink
Back to Good Food