Why does chocolate get that white film on it?

Chemistry For Your Life

#092 - Chocolate Part 2 of 3

You know how when you were a kid, you'd sometimes find some old, forgotten halloween chocolate? But the chocolate would look a little white, and if you risked eating it, it would taste weird? Well we're not ashamed to say we've experienced this even as adults, but this time we're taking a close look at this strange mystery. Why does it happen? How long does it take? Why does it affect both the look and the taste? Let's find out.

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References from this episode

1. https://www.chemistryworld.com/features/well-tempered-chocolate/9200.article
2. https://cen.acs.org/articles/93/i20/Unwelcome-Fat-Blooms-Chocolate.html
3. https://pubs.acs.org/doi/abs/10.1021/acsami.5b02092?source=cen
4. https://cen.acs.org/articles/95/i7/whats-chocolate-and-how-does-its-chemistry-inspire-such-cravings.html?utm_source=YMAL&utm_medium=YMAL&utm_campaign=CEN&utm_content=pos1
5. https://www.acs.org/content/acs/en/pressroom/reactions/videos/2016/why-is-chocolate-bad-for-dogs-video.html
6. https://www.acs.org/content/acs/en/pressroom/reactions/videos/2016/gum-chocolate-weird-food-tricks-1.html
7. https://www.acs.org/content/acs/en/acs-webinars/culinary-chemistry.html
8. https://www.acs.org/content/acs/en/education/resources/highschool/chemmatters/emergency-lesson-plan-chocolate-the-new-health-food-or-is-it.html
9. https://www.acs.org/content/acs/en/acs-webinars/culinary-chemistry/chocolate-desire.html
10. https://onlinelibrary.wiley.com/doi/epdf/10.1111/1541-4337.12180
11. https://www.acs.org/content/acs/en/pressroom/reactions/videos/2019/is-white-chocolate-actually-chocolate.html
12. https://cen.acs.org/articles/94/i11/Periodic-graphics-chocolate-chemistry.html
13. https://cen.acs.org/articles/93/i20/Unwelcome-Fat-Blooms-Chocolate.html?utm_source=YMAL&utm_medium=YMAL&utm_campaign=CEN&utm_content=pos1
14. https://cen.acs.org/articles/95/i7/whats-chocolate-and-how-does-its-chemistry-inspire-such-cravings.html
15. https://www.acs.org/content/acs/en/acs-webinars/culinary-chemistry/chocolate-chem.html

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