Ketchup sometimes acts like a liquid (it can flow) but sometimes it acts more like a solid (it keeps its shape to some extent).The thickness of most liquids remains the same even if a force is ...

Viscosity, the resistance of flow, classifies liquids like water and olive oil as Newtonian fluids, while non-Newtonian fluids like ketchup and mayonnaise defy these rules, behaving as "soft ...

The point of the valve was to regulate the flow of ketchup so the bottle squirts out the red goop in a predictable fashion. The problem with the old cap is that the use of two materials both makes ...

Everyone knows that ketchup is notoriously difficult to get out of a glass bottle. But fear not! Here are five great hacks for getting the stubborn sauce out.

The plot has thickened in the Justin Trudeau-Heinz ketchup controversy, as consumers with bottles that say “Product of USA” ...