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 Yeast and Bread
Name: Molly
Location: N/A
Country: N/A
Date: N/A


Question:
How does the amount of yeast affect a loaf of bread?



Replies:
The yeast cells in bread dough ferment sugars and produce gas (carbon dioxide). This will make the dough rise. If there is not enough yeast, the dough will not rise sufficiently and become less fluffy after baking. Without yeast you get unleavened bread. With too much yeast the dough becomes very light, and in the oven will collapse. in both cases the bread is still completely safe to eat. The amount of yeast per bread is very much a matter of taste and varies from country to country.

Dr. T. Wassenaar



Click here to return to the 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 (help@newton.dep.anl.gov), or at Argonne's Educational Programs

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

Argonne National Laboratory