Mustard flour is our life - We produce a variety of mustard flours in Germany! Furthermore, Schlueter & Maack GmbH, has been a trusted name in international trade for over 200 years. Specializing in the supply of safe and high-quality ingredients to the food industry. We collaborate with audited partners in key producing countries worldwide. Schlueter & Maack’s product range includes mustard flour, mustard seeds, sugar, edible nut and pulses.