Whether it's the old favourite Sarson's, trendy balsamic or the more adventurous rice or wine vinegar, it can be used to clean your house, improve your health and spice up your chips – what makes vinegar so special? Laura Sevier picks 10 of the best...
It's the condiment of choice for a million fast-food outlets and a staple sauce in homes around the world, but there's more to tomato ketchup than meets the eye, says Pat Thomas
