Dri-Pak Soda Crystals are a traditional and versatile cleaning product with a 200-year heritage. Ideal for laundry, they help shift heavy stains, soften hard water, and can be used as a pre-soak. In household cleaning, they effectively cut through grease on cookers, pans, and surfaces, and can unblock sinks and drains by dissolving grease. Additionally, regular use can prevent limescale build-up in washing machines, prolonging their lifespan. Made in the UK, these biodegradable crystals contain no petrochemicals and are suitable for use in septic tanks.