Something for food physicists

[ole]

Here's one for you chemists and physicists. Over the July 4th weekend, I packed two packages of six Hershey Bars. Of course, they melted and became deformed. Upon refrigerating them, they became quite delectable but here's the rub.

The cold Hershey bar snaps and bites just fine, but on every one of them, in the same place every time is a runny spot. Why would a cold, snappy Hershey bar have a runny spot? And in the same place on each?

ole

[blue_zouave]

Ole, it might have something to do with the oils in the chocolate separating from the cocoa and pooling. I venture to say that this runny spot is at the center of the bar.

Zou (who prefers Special Dark if one must eat Hershey's at all!)