Royal Duyvis Wiener B.V.

24/7 Technical Support Hotline: +31 756 126 133

+31 756 126 126

Koog aan de Zaan (NL)


The Royal Duyvis Wiener Technology Center

Customer Testing in a Pilot Plant

Test your recipe innovations on a smaller scale on the state-of-the-art equipment in the Technology Center, a unique 2000m2 full-scale pilot plant to support any project from cocoa bean processing to small-scale compound and chocolate manufacturing. Walk away with all the data you need and expert advice from the Food Technologists.

Duyvis Wiener lab
Research & Development Cocoa and Chocolate Processing Equipment

Research & Development

Following trends & developments in the food &  beverage industry, ingredients and processing methods change. Want to stay ahead of the curve on what’s happening in the industry and how that affects your processing solutions? We test our machines so you don’t have to. Results are shared via webinars and whitepapers. Keep an eye on our newsletters for more…

Training & Education

Want to tap into the expert knowledge of the Royal Duyvis Wiener Food Technology team? Take a pick from the extensive training program! There is a wide array of training available, ranging from introductory courses for starters in the food & beverage industry to expert sessions and bring-your- own masterclasses. Prefer a bespoke training program?
Reach out to discuss the options.

Training customers how to process cocoa and chocolate products

Introducing the Food Technology experts

Manager Technology Center Roy Smith
Roy Smith

Manager Technology Center

Roy Smith trained at the Van Hall Institute in Food Science and Technology and has a longstanding career in the cocoa and chocolate industry. After roles at key players in the industry, e.g. Verkade, Barry Callebaut, and ADM, Roy joined Royal Duyvis Wiener in 2016 as lead Food Technologist.

Food Technologist Dennis Mikel Hemelaar
Dennis Mike Hemelaar

Food Technologist

Dennis Hemelaar trained at Inholland University in Food Commerce and Technology, specializing in Food Technology. After starting his career as a Quality Control Specialist he he shifted his focus to the cocoa & chocolate industry.  He joined Royal Duyvis Wiener Technology Team in 2020.  

Food Technologist Dane
Dane te Hennepe

Process Technologist

Dane te Hennepe completed his bachelor in Food Technology and master in Sustainable Food Process Engineering at Wageningen University. He has proviously worked for Coca Cola R&D, before making the transition to the cocoa industry. Dane has been Royal Duyvis Wiener’s  Process Technologist since 2016.