What Is Really Inside Your Easter Treat?

Some of the results so far have been surprising. For example almost half of a Kit Kat isn't even made out of chocolate. (Image: Alexas_Fotos via Pixabay)

What happens when you X-ray an Easter treat such as a chocolate rabbit? How complex is the wafer and chocolate composite of a Kit Kat? And why does the inside of a Ferrero Rocher resemble moon rock? These are just some of the important, chocolate-related questions scientists at the University of Manchester are answering this Easter.

Using X-Ray Computer Tomography at the University’s Manchester X-ray Imaging Facility (MXIF), researchers are creating 3D computer simulation videos of chocolates that show some of your favorite chocolate treats as you’ve never seen them before.

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Dr. Tristan Lowe, Senior Experimental Officer at MXIF, said:

Easter treat favorites X-rayed

Dr. Lowe has produced a series of videos, with accompanying scientific analysis, to reveal over the Easter break. Overall, he has X-rayed eight chocolaty Easter treat favorites. These are a chocolate Easter bunny, Easter egg, a Toblerone, a Crème Egg, a Kit Kat, Maltesers, Ferrero Rocher, and a Double Decker.

Some of the results so far have been surprising. For example almost half of a Kit Kat isn’t even made out of chocolate. While 53 percent of the bar is chocolate, its biscuit (18 percent) and wafer (29 percent) like structure in the center make up 47 percent. Interestingly, the structure bears many similarities to the rocks that we have been investigating for the extraction of oil and gas.

Dr. Lowe explains the comparison:

The porosity in the Yorkie Bar is very different. Its analysis does show it is the densest chocolate bar of those tested. The porosity in the Yorkie bears a close resemblance to the pores found in 3D printed metal components and is the subject of extensive research to eliminate such defects. 

Provided by: University of Manchester [Note: Materials may be edited for content and length.]

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