The secret to keeping beetroot a beautiful red when you bake it Beetroot can lose its lovely hues when baked. The trick to stopping that is to understand the chemistry of the pigments that give it its vibrant colour, says Sam WongRegulars
HumansHow to make ice cream with no freezer, just ice and salt Fancy making ice cream this summer? The secret to soft, creamy and delicious scoopfuls of the stuff lies in the complex science of freezing, says Sam WongRegulars