Department of Energy Argonne National Laboratory Office of Science NEWTON's Homepage NEWTON's Homepage
NEWTON, Ask A Scientist!
NEWTON Home Page NEWTON Teachers Visit Our Archives Ask A Question How To Ask A Question Question of the Week Our Expert Scientists Volunteer at NEWTON! Frequently Asked Questions Referencing NEWTON About NEWTON About Ask A Scientist Education At Argonne Candy and Bacteria
Name: Lance M.
Status: Student
Age: 15
Location: N/A
Country: N/A
Date: 2001

How safe is a open bowl of candy from bacteria?

My guess is that there is so much sugar in candy that bacteria will not grow on it. I would not worry about this aspect of food safety.

Trudy Wassenaar

Candy is a very concentrated form of sugar. Bacteria can't grow in concentrated salt or sugar environments. In the days before refrigeration food was highly salted to preserve it, such as ham, etc. , or it was preserved in highly concentrated sugar. So your candy bowl should be safe.


Click here to return to the Molecular Biology Archives

NEWTON is an electronic community for Science, Math, and Computer Science K-12 Educators, sponsored and operated by Argonne National Laboratory's Educational Programs, Andrew Skipor, Ph.D., Head of Educational Programs.

For assistance with NEWTON contact a System Operator (, or at Argonne's Educational Programs

Educational Programs
Building 360
9700 S. Cass Ave.
Argonne, Illinois
60439-4845, USA
Update: June 2012
Weclome To Newton

Argonne National Laboratory