Wisconsin Administrative Code
Department of Agriculture, Trade and Consumer Protection
ATCP 55-89 - Food, Lodging, and Recreation Safety
Chapter ATCP 75 - Retail Food Establishments
Appendix - Wisconsin Food Code
Chapter 4 - Equipment, Utensils, and Linens
Part 4-1 - MATERIALS FOR CONSTRUCTION AND REPAIR
Subpart 4-101 - Multiuse
Section 4-101.12 - Cast Iron, Use Limitation

(A) Except as specified in ¶¶ (B) and (C) of this section, cast iron may not be used for UTENSILS or FOOD-CONTACT SURFACES of EQUIPMENT.

(B) Cast iron may be used as a surface for cooking.

(C) Cast iron may be used in UTENSILS for serving FOOD if the UTENSILS are used only as part of an uninterrupted process from cooking through service.