12/31/2014
1
ACS Webinars™
We will start momentarily at 2pm ET
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Download slides after webinar:
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2 Contact ACS Webinars™at [email protected]
Download slides after webinar:
http://acswebinars.org/crosby
12/31/2014
2
Next Food Chemistry www.acswebinars.org
Charles Bamforth
Anheuser-Busch Endowed Professor of Malting &
Brewing Sciences at UC Davis
3 Contact ACS Webinars™ at [email protected]
Thursday March 15, 2012
More Advanced Beer and Brewing
–Tips, Tricks, and Tidbits You Wish
You Knew
Upcoming ACS Webinars™ www.acswebinars.org
Thursday February 23, 2012
Secret Science of Movie Stunts and Special
Effects Steve Wolf, founder of Science in the Movies and President of Special FX International
Thursday March 1, 2012
Secrets from the Other Side – What Recruiters
Know that You Don’t Dr. Dennis Guthrie, Associate Director of Research & Development at The Dow
Chemical Company
4 Contact ACS Webinars™ at [email protected]
12/31/2014
3
Stay tuned… you could win!
5 Contact ACS Webinars™at [email protected]
One Year Subscription
to Cook’s Illustrated
6
Top Five Chemistry Tips for the Kitchen
Download slides after webinar:
http://acswebinars.org/crosby
Contact ACS Webinars™at [email protected]
ACS WEBINARS™ February 16, 2012
Sara Risch,
Popz Microwave Popcorn
Guy Crosby,
America’s Test Kitchen
12/31/2014
4
Top Five Chemistry Tips for the
Kitchen
Guy Crosby, Ph.D.
7
Question How important is the application of science to home
cooking?
Very important
Somewhat important
Not very important
Not at all-cooking is an art
8
12/31/2014
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Outline
Preserving fresh produce
Applications for baking soda
A quicker way to make stock
The best way for staling bread
Making really chewy brownies
Questions and answers
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Preserving Fresh Produce
Photosynthesis and respiration
6 CO2 + 6 H20 C6H12O6 + 6 O2
Le Châtelier’s Principle
(modified atmosphere)
Application at home
(salad greens, others?)
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12/31/2014
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Applications for Baking Soda
•Aqueous NaHCO3 is alkaline
•Rapid breakdown of pectin at
pH > 5-6 weakens cell walls
•Decomposes to Na2CO3 + H2O + CO2
• Applications in the kitchen (polenta, oven roasted home fries,
carrot cake)
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A Quicker Way to Make Stock
Traditional stocks require hours of cooking
Collagen slowly breaks
down to gelatin
Applications in the kitchen (bolognese sauce, beef
stew, horseradish crusted beef tenderloin)
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12/31/2014
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The Best Way for Staling Bread
Starch gelatinization and retrogradation
What happens when bread stales?
Applications in the kitchen (bread pudding, tomato-bread salad-panzanella)
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Making Really Chewy Brownies
The crystal structure of fat plays a key role in the chewy texture of brownies
Fat occurs in 3 basic crystal structures
Applications in the kitchen (brownies, sugar cookies, chocolate truffles, chocolate pudding)
Alpha-crystals Beta-prime-crystals Beta-crystals
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12/31/2014
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Bonus Tip – Maillard Reaction
Flavors of roasted meat, baked bread, chocolate,
coffee
Louis-Camille Maillard 1912
Reaction of reducing sugars with
amino acids (example: pyrazines)
Favored by dry, hot conditions pH 5-7
Applications in the kitchen (pan-roasted
fish fillets-halibut, sea bass, snapper)
15
Resources
The Science of Good Cooking (Cook’s Illustrated 2012)
Culinary Reactions (Field 2012)
Food-The Chemistry of its Components (Coultate 2009)
Food Chemistry (Belitz, Grosch & Schieberle 2009)
Kitchen Chemistry (Lister & Blumenthal 2005)
What Einstein Told His Cook 1 & 2 (Wolke 2002 & 2005)
On Food and Cooking (McGee 2004)
The Science of Cooking (Barham 2001)
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12/31/2014
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Questions and Answers
17 18
Top Five Chemistry Tips for the Kitchen
Download slides after webinar:
http://acswebinars.org/crosby
Contact ACS Webinars™at [email protected]
ACS WEBINARS™ February 16, 2012
Sara Risch,
Popz Microwave Popcorn
Guy Crosby,
America’s Test Kitchen
12/31/2014
10
Stay tuned… you could win!
19 Contact ACS Webinars™at [email protected]
One Year Subscription
to Cook’s Illustrated
Stay Connected…
ACS Network (search for group acswebinars)
LinkedIn (search group for acswebinars)
www.twitter.com/acswebinars
www.facebook.com/acswebinars
20 Contact ACS Webinars™at [email protected]
12/31/2014
11
Next Food Chemistry www.acswebinars.org
Charles Bamforth
Anheuser-Busch Endowed Professor of Malting &
Brewing Sciences at UC Davis
21 Contact ACS Webinars™ at [email protected]
Thursday March 15, 2012
More Advanced Beer and Brewing
–Tips, Tricks, and Tidbits You Wish
You Knew
Upcoming ACS Webinars™ www.acswebinars.org
Thursday February 23, 2012
Secret Science of Movie Stunts and Special
Effects Steve Wolf, founder of Science in the Movies and President of Special FX International
Thursday March 1, 2012
Secrets from the Other Side – What Recruiters
Know that You Don’t Dr. Dennis Guthrie, Associate Director of Research & Development at The Dow
Chemical Company
22 Contact ACS Webinars™ at [email protected]
12/31/2014
12
The moment you’ve all been waiting for…
23 Contact ACS Webinars™at [email protected]
Congratulations!
One Year Subscription
to Cook’s Illustrated
Ellen Gee
ACS Webinars™ does not endorse any
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expressed in this presentation are those
of the presenter and do not necessarily
reflect the views or policies of the
American Chemical Society.
ACS Webinars™
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