We Are Castle Group
Belgian food ingredients & processing since 1868
Milk powders, plant-based ingredients, and contract processing services—produced in Belgium and powered by renewable energy.
At Castle Group®
, we proudly offer:
Dairy ingredients under Castle Dairy® (since 1934)
Established in 1934, Castle Dairy® offers a comprehensive range of milk powders, including whole milk powder, skimmed milk powder, cream powder, whey powder, milk replacers and more.
Plant-based ingredients under Castle Ingredients®
Our plant-based ingredients, marketed under Castle Ingredients®, include malt flours for natural coloring and flavor enhancement in bakery products, without chemical additives. We also supply toasted seeds and cereals that add rich flavors and crispy textures to a wide variety of foods.
Processing & services by Castle Processing®
Through Castle Processing®, we offer a comprehensive range of services, including roasting, drying, pasteurisation/sterilization, saccharification, deodorization, dry blending, grinding, custom processing, packaging, cold storage and logistics. Castle Processing® is a recognized expert in electric thermal processing.
Our Factories & Companies
Our factories in Lontzen and Hombourg, Belgium, cover 35,000 m² and 13,000 m², respectively. Both operate exclusively on renewable energy sources. Their rooftops are equipped with 6.45 MWc of photovoltaic solar panels, providing clean energy for our 100% electric dry production processes.
Located near the E40, one of Europe's major highways, our facilities benefit from a strategic position at the heart of Europe. We are just 12 kilometers from the German border and 15 kilometers from the Netherlands, providing convenient access to key European markets.
Our Quality
Compliance with international and national standards, guidelines and certifications is essential to responsible food manufacturing. At Castle, we adhere to a broad range of international and country-specific standards and regulations. We closely monitor developments in this field to help ensure the safety, quality and responsible production of our products throughout the supply chain.
Our Sustainability
At Castle Ingredients, we are committed to reducing CO₂ emissions and supporting a more sustainable food industry. Our approach combines solar energy, dry processing and efficient production methods.
Solar-powered factories
Our facilities are equipped with 6.45 MWc of rooftop photovoltaic solar panels. This renewable energy powers our 100% electric production processes, eliminating on-site fossil fuel use for these operations. Solar energy is also made available to our staff and the public through our EV charging stations.
Exclusive dry processing & material up-cycling
We specialize in dry processing, a resource-efficient alternative to wet processing for producing protein-rich ingredients from grain legumes. Traditional wet methods require significant amounts of water and energy and may generate chemical waste. Dry processing uses mechanical processes, such as dry milling and air classification, to separate protein and starch without water or chemicals.
Efficiency and automation
Efficient heat treatment, heat recovery and advanced fume treatment support our approach to responsible manufacturing. We also address sustainability beyond production, including through packaging recycling and more efficient logistics.
Responsible consumption and production
We also work to create value from underutilized raw materials. By extracting proteins, starches and fibers, we help transform materials that might otherwise be discarded into useful ingredients.
Our processing expertise helps clients improve resource efficiency and reduce waste. Through material up-cycling and more efficient processing, we can help lower the environmental footprint of their products. Our supply chain practices further support these efforts, enabling our clients to pass on sustainability benefits to their customers.
Our History and Values
Our legacy
Since 1868, Castle Group® has grown as a Belgian family-owned company at the heart of the European food industry. What began as a local dairy business has evolved into a specialist in milk powders, plant-based ingredients and value-adding services for food manufacturers. Throughout our history, our focus has remained consistent: technical expertise, reliable quality and long-term customer partnerships.
Looking ahead
Rooted in tradition and supported by modern processing capabilities, Castle Group® continues to adapt to the changing needs of the food industry. We develop our technical expertise, processing capabilities and raw material knowledge to help clients respond to evolving market demands across dairy, plant-based ingredients and beyond. Our goal is simple: to help our clients produce consistent, safe and enjoyable products at industrial scale, supported by reliable service and practical technical expertise.
What drives us
Technical expertise, quality, service, integrity, creativity and a strong commitment to sustainability guide Castle Group®'s development. By combining technical knowledge with dependable service, we build lasting partnerships and deliver reliable, practical solutions for the food industry.
Our Events & News
A world of ideas, innovations, and business opportunities – meet Castle Group®!
Explore our blog for articles on the food manufacturing industry, company news, and valuable insights.
Explore our collection of informative brochures details about our diverse range of products and services at.