processing, or fabrication of any commodity except the following which are prohibited: Abrasives, animal by-products , carbon black, lamp black, bone black, charcoal, chemicals (heavy or industrial), coke, cement (Portland and similar), detergents, soap and by-products using
Read it in the chapter →How this ordinance defines it
The operative definition is the local one. Codes routinely subdivide a category into tiers — “day care 2, family”, “group home 2” — and attach different permissions to each, so only La Mesa’s own text settles what this covers.