I thought that I'd post this link as many of us use crushed walnut shells in our vibratory tumblers.
I had never thought of the "nut allergy" implications - very sad story:
http://www.bbc.com/news/world-us-canada-41726498
I had never thought of the "nut allergy" implications - very sad story:
http://www.bbc.com/news/world-us-canada-41726498


















































