If you're partial to a savoury snack, it's likely you've come across Ritz crackers.
Their golden colour, perfect crunch and deliciously salty taste is enough to make anyone's mouth water, but have you ever thought about why the humble Ritz cracker has jagged edges running around the perimeter?
The tasty treat has seven perforations and a finely scalloped edge, which most of us would put down to sheer aesthetics, but apparently, they actually serve a purpose.