| Δ0 | chipped enamel-coated cast iron pots themselves | a chipped enamel cast iron pot, a cracked enamel dutch oven with cast iron underneath |
| Δ1 | other enamel-coated cookware with visible chips or cracks | a chipped enamel roasting pan, a cracked enamel saucepan, a flaking enamel casserole dish, a chipped enamel kettle |
| Δ2 | enamel-coated cookware that is fully intact and undamaged | a brand-new enamel dutch oven, an unblemished enamel skillet, a pristine enamel stockpot, an intact enamel baking dish |
| Δ3 | other coated metal cookware surfaces | nonstick Teflon frying pans, ceramic-coated saucepans, anodized aluminum pots, hard-anodized woks |
| Δ4 | cookware made from other common materials | plain stainless steel pots, glass baking dishes, stoneware casseroles, copper saucepans |
| Δ5 | everyday kitchen items unrelated to cooking vessels | wooden cutting boards, dish towels, kitchen sponges, plastic food storage containers, oven mitts |