Then it's on to washing. At this point, most of the green husk has fallen away, revealing the more familiar walnut shell. Any remaining husks are removed by being swirled around in water.

The death of an Edmonton man who suffered a fatal allergic reaction after visiting a worksite where walnut shells were used to blast paint off walls is baffling, an allergy expert says.

Jo Noon, sight coordinator for the Walnut Grove Pioneer Village, strolls past buildings decorated for the Village Christmas Walk in period dress on Sunday, Nov. 25, 2007 in Long Grove.