Arguably Wright’s worst culprit is using plastic containers to heat food, including takeaway boxes and microwave meal packaging. Even putting warm leftovers into a plastic container can cause it to shed particles into your food. Ikea’s 365 range of glass storage containers is dishwasher- and oven-proof and microwaveable; the boxes are stackable and come in multiple sizes with the option of bamboo or clip-on plastic lids (from £3.50, ). Alternatively, Toast’s enamel storage jars will look pretty on the shelf (£25, ), while brown glass apothecary jars will add further vintage charm (from £10, labourandwait.co.uk).