Processing Hazelnuts

Development of appropriately-scaled processing equipment for hazelnuts grown in the Upper Midwest is underway. 

American Hazelnut Company

The American Hazelnut Company is a hazelnut processing and marketing company owned by hazelnut growers in the Upper Midwest.

Upper Midwest Hazelnut Processing Guide

This guide published by UW-Extension and the Hazelnut Processing Steering Committee provides background information on hazelnut processing and an update on equipment currently available or in development.

Hazelnut Processing Enterprise Budgeting Tool

How much does it cost you to turn in-husk hazelnuts into kernels?  This spreadsheet tool is for anyone developing a hazelnut processing line for turning in-husk or in-shell hazelnuts into kernels.  By entering data specific to the processing line the tool can help determine costs of production.  You'll need to enable Macros in Excel to use the tool.

Don Price Hazelnut Bucket Husker

Hazelnut grower, Don Price, has developed a low-cost husker to remove dried husks from the hazelnuts.  This report shows you how to build one for yourself.

Mickelson Barrel Husker

The next step up from the Bucket Husker, the Barrel Husker removes the husks one batch at a time.  It can be built with off-the-shelf parts and works very well as long as the husks are dry.

X2000 Hazelnut Husker

Designed and built by Pendragon Specialties, the X2000 Hazelnut Husker is a high throughput machine inteded for use by large or groups of growers.  The schematic drawings, wiring diagram, and materials lists are provided free for anyone to use.  A prototype machine was built by UW-Extension and Forest Agriculture Enterprises and, as with any prototype, some modifications to the machine will likely be necessary to optimize performance including re-working the shaker box.  Anyone interested in the X2000 is encouraged to contact Jason Fischbach or Pendragon Specialties directly to keep up-to-date on the design of the machine.

Drill Cracker Research Bulletin

The Drill Cracker ( is used by many growers in the Upper Midwest to crack hazelnuts due to its speed of operation, relatively low cost, and effectiveness.  This Research Bulletin provides the results from trials working to optimize the whole kernel recovery rate.