YOU WILL NEED

✽ Gloves (citric acid can cause skin irritation)

✽ ½ cup baking soda ✽ ¼ cup citric acid ✽ ¼ cup arrowroot ✽ Non-metallic bowl ✽ Non-metallic spoon (or use hands) ✽ 100 drops lemon essential oil

✽ 80 drops sweet orange essential oil ✽ 80 drops grapefruit essential oil ✽ 110ml vodka ✽ Lemon zest, to decorate ✽ Silicone mould tray (available from Amazon; makes 12 x 4½cm steamers)