This story appears in the February 2019 issue of National Geographic magazine. Ketchup—that cheerful red sauce sold in handy glass bottles—first came on the American market in the 19th century.

It's no secret that Canadians love ketchup: according to Kraft Heinz Canada, 87 per cent of us have a bottle in the fridge, and we consume more ketchup per capita than our American neighbours.

Lacquers, paint, concrete—and even ketchup or orange juice: Suspensions are widespread in industry and everyday life. By a suspension, materials scientists mean a liquid in which tiny ...

PITTSBURGH & CHICAGO--(BUSINESS WIRE)--From fries to hashbrowns, HEINZ Ketchup and fried potatoes have always gone hand in hand. But for some reason, potato chips and HEINZ don’t always receive ...

Making your own ketchup is not as difficult or time-consuming as it sounds - and it makes any barbecue go with a bang. For the burnt-onion ketchup, heat a tablespoon of the oil in a large non ...

Love slathering your food in ketchup and mustard? Here's what to know about condiments and health. (Getty Creative) ...