311211  Flour Milling

This U.S. industry comprises establishments primarily engaged in (1)
milling flour or meal from grains (except rice) or vegetables and/or
(2) milling flour and preparing flour mixes or doughs. 

The data published with NAICS code 311211 include the following
SIC industries:

2034 Dehydrated fruits, vegetables, and soup mixes (pt)
2041 Flour and other grain mill products