Any person establishing premises for the production, blending, cellar treatment, storage, bottling, packaging, or repackaging of untaxpaid wine (other than wine produced exempt from tax under section
5042), including the use of wine spirits in wine production, shall, before commencing operations, make application to the Secretary and file bond and receive permission to operate. Such premises shall be known as bonded wine cellars; except that any such premises engaging in production operations may, in the discretion of the Secretary, be designated as a bonded winery.