Ostro began with a simple idea: cooking should feel effortless and enjoyable, not frustrating or unsafe because of dull knives. As a small Australian business, we set out to create easy-to-use, reliable knife sharpeners that anyone—whether a seasoned home cook or a beginner—can use with confidence. What started as a passion for quality tools and better kitchen experiences has grown into a community of over 5,000 Aussies who now enjoy smoother, safer, and more satisfying meal prep thanks to sharper knives. At Ostro, we’re proud to help elevate everyday cooking, one perfectly honed blade at a time.