California Notices
Effective October 21, 2026
California's cookware disclosure law (AB 1200)
California law (Health and Safety Code sections 109010 to 109014, passed as Assembly Bill 1200) applies when a chemical on the state's designated list is intentionally added to a part of a cookware product that touches food, or to its handle. The maker must then publish three things for every chemical in the cookware that is on the designated list: the chemical's name, the name of each authoritative list it appears on, and a link to each of those lists. The product label names the chemicals that are added on purpose.
The designated list is the Candidate Chemicals List kept by the California Department of Toxic Substances Control (DTSC). DTSC builds it from other official lists, which it calls authoritative lists.
The stainless steel in our cookware is iron alloyed with chromium, nickel and manganese, so these four metals are part of it by design. Our skillets are also clad: an aluminum core sits between the steel layers to spread the heat, and it shows as a thin line at the cut rim. The rivets that hold the handle on, whose heads are inside the pan, are a stainless steel that also contains copper. The handle itself is grade 201 stainless steel, which contains a little nitrogen by design. All six metals and nitrogen are listed below because the law asks us to name them. The steel also carries a trace of phosphorus, and the mill certificates report a trace of zinc in the aluminum core; neither is an ingredient. Both are listed below as well, because this page must name every listed chemical in the cookware, but they are not on the product label.
SEAR SERIES skillets: 8 in (20 cm), 9.5 in (24 cm) and 11 in (28 cm)
Parts covered: the cooking surface, which is 304 (18/8) stainless steel; the rim, where the cut edge shows the aluminum core between the steel layers; the rivets that fix the handle, whose heads are inside the pan; and the lid and the handles, which are also stainless steel.
This product contains: aluminum, chromium, copper, iron, manganese, nickel, nitrogen.
Also listed on this page, as trace elements that are not on the label: phosphorus (in the steel) and zinc (in the aluminum core).
The authoritative lists for each chemical follow.
Aluminum
DTSC lists it as: aluminum. Authoritative lists:
- Neurotoxicants — US Agency for Toxic Substances and Disease Registry (DTSC: ATSDR Neurotoxicants)
- Drinking Water Maximum Contaminant Levels — California State Water Resources Control Board (DTSC: CA MCLs)
- Clean Water Act section 303(d) list of impaired waters — California State Water Resources Control Board (DTSC: CWA 303(d))
Chromium
DTSC lists it as: chromium compounds, and chromium (total). Authoritative lists:
- Toxic Air Contaminants — California Air Resources Board (DTSC: CA TACs)
- Drinking Water Maximum Contaminant Levels — California State Water Resources Control Board (DTSC: CA MCLs)
- Fourth National Report on Human Exposure to Environmental Chemicals — US Centers for Disease Control and Prevention (DTSC: CDC 4th National Exposure Report)
- Clean Water Act section 303(d) list of impaired waters — California State Water Resources Control Board (DTSC: CWA 303(d))
- Reference Exposure Levels — California Office of Environmental Health Hazard Assessment (DTSC: OEHHA RELs)
Copper
DTSC lists it as: copper. Authoritative lists:
- Fourth National Report on Human Exposure to Environmental Chemicals — US Centers for Disease Control and Prevention (DTSC: CDC 4th National Exposure Report)
- Clean Water Act section 303(c) water quality standards — US Environmental Protection Agency (DTSC: CWA 303(c))
- Clean Water Act section 303(d) list of impaired waters — California State Water Resources Control Board (DTSC: CWA 303(d))
- Reference Exposure Levels — California Office of Environmental Health Hazard Assessment (DTSC: OEHHA RELs)
Iron
DTSC lists it as: iron. Authoritative lists:
Manganese
DTSC lists it as: manganese and manganese compounds. Authoritative lists:
- Neurotoxicants — US Agency for Toxic Substances and Disease Registry (DTSC: ATSDR Neurotoxicants)
- Drinking Water Notification Levels — California State Water Resources Control Board (DTSC: CA NLs)
- Toxic Air Contaminants — California Air Resources Board (DTSC: CA TACs)
- Fourth National Report on Human Exposure to Environmental Chemicals — US Centers for Disease Control and Prevention (DTSC: CDC 4th National Exposure Report)
- Clean Water Act section 303(d) list of impaired waters — California State Water Resources Control Board (DTSC: CWA 303(d))
- Integrated Risk Information System, neurotoxicants — US Environmental Protection Agency (DTSC: IRIS Neurotoxicants)
- Reference Exposure Levels — California Office of Environmental Health Hazard Assessment (DTSC: OEHHA RELs)
Nickel
DTSC lists it as: nickel and nickel compounds. Authoritative lists:
- Toxic Air Contaminants — California Air Resources Board (DTSC: CA TACs)
- Clean Water Act section 303(c) water quality standards — US Environmental Protection Agency (DTSC: CWA 303(c))
- Clean Water Act section 303(d) list of impaired waters — California State Water Resources Control Board (DTSC: CWA 303(d))
- Group 1 classifications — International Agency for Research on Cancer (DTSC: IARC Carcinogens - 1)
- Report on Carcinogens, 13th edition (known to be human carcinogens) — US National Toxicology Program (DTSC: NTP 13th RoC - known)
- Reference Exposure Levels — California Office of Environmental Health Hazard Assessment (DTSC: OEHHA RELs)
- Proposition 65 List — California Office of Environmental Health Hazard Assessment (DTSC: Prop 65)
Nitrogen
We list nitrogen as a precaution: it is in the grade 201 stainless steel of the pan handle by design, and the Water Board's 303(d) list names it as a pollutant. We have not yet confirmed that DTSC lists it as a Candidate Chemical. Authoritative lists:
Phosphorus
Phosphorus is not added on purpose: it is a trace impurity in stainless steel that the steel mill keeps under a set limit (the mill certificate for our clad sheet reports 0.0321% in the 304 cooking surface). The law asks this page to name every chemical on the designated list that is in the cookware, so we list it here; it is not on the product label, which names only the chemicals added on purpose. DTSC lists it as: phosphorus. Authoritative lists:
Zinc
Zinc is reported by the mill certificates for our clad sheet as a trace element of the aluminum core: less than 0.003% in its grade 1050 aluminum layer, a grade that is at least 99.6% aluminum and allows at most 0.05% zinc. The certificates set only a maximum for zinc, as for every element in that grade other than aluminum, so it is not one of the grade's ingredients. The law asks this page to name every chemical on the designated list that is in the cookware, so we list it here; it is not on the product label, which names only the chemicals added on purpose. DTSC lists it as: zinc. Authoritative lists:
- Fourth National Report on Human Exposure to Environmental Chemicals — US Centers for Disease Control and Prevention (DTSC: CDC 4th National Exposure Report)
- Clean Water Act section 303(c) water quality standards — US Environmental Protection Agency (DTSC: CWA 303(c))
- Clean Water Act section 303(d) list of impaired waters — California State Water Resources Control Board (DTSC: CWA 303(d))
PREP SERIES lunch box: 27 oz (800 ml), 3-pack
The lunch box is not on sale in the United States yet. Its disclosure, covering the stainless steel container and every part of the lid, will be published here before it goes on sale.
Proposition 65
Proposition 65 is a separate California law. It requires a clear and reasonable warning before anyone in California is exposed to a chemical on the state's Proposition 65 list above its safe-harbor level.
Nickel, one of the metals in stainless steel, is on the Proposition 65 list. If a Proposition 65 warning is ever required for one of our products, it will appear on a label on the base of the box, on the Amazon listing and on this page.
Questions
If you have a question about the materials in our cookware, email customerservice@seidocookware.com.
Your privacy rights in California
California's privacy law gives you rights over the personal information we hold. Those rights, and how to exercise them, are set out in our Privacy Policy, which also explains how we honor Global Privacy Control signals.