A bit of a seasonal hero when the elderflower blooms, citric acid is also a year-round cleaning cupboard staple.
Try it for -
Descaling your kettle: add 80g to half a kettle of just boiled water (put the kettle in your kitchen sink as it bubbles up). Leave for 1/2 an hour to dissolve away the limescale. Tip the water away and rinse the kettle, knowing you're adding no toxic chemicals to the waterways.
Toilet cleaner: dissolve 200g in 150ml boiling water. Stir until dissolved then add a squirt of Fill eco-friendly washing up liquid and a couple of drops of essential oil if required. Leave to cool then decant into a bottle for a weekly loo clean.
Citric acid (food grade) - 100g