Hard anodized none-stick cookware is a recommended alternative to traditional non-stick kitchenware. The metal used to make hard anodized cookware is aluminum. Even though aluminum by itself is bad for health, and anodization process helps keep aluminum from leeching into the food stuff during the cooking process.

How Does Anodizing Work?

Anodization is a type of oxidation which is designed to deposit and ‘adhere’ oxygen ions on an aluminum surface. Oxidation is a naturally occurring phenomenon. Industrial anodization is an improved and highly managed version of natural oxidation.

The basic process of anodizing is the immersion of aluminum into an acid electrolyte fluid, and passing an electric current through the aluminum. A cathode1 is placed within the container holding the fluid, and the aluminum piece acts as the anode2 which results in the oxygen ions adhering to the surface of the aluminum.

1 & 2: An anode is an electrode (a conducting material through which electricity flows) through which electricity flows into (something), and a cathode is an electrode through which electricity flows out of (something).

Benefits of Anodized Cookware

The primary benefit of a hard anodized cookware is the non-stick nature of the hard anodized aluminum without the presence of industrial chemical coatings. Below is a complete list of benefits offered by hard anodized aluminum cookware.

  • Non-stick surface: Hard anodized aluminum has a non-stick surface. The non-stick surface resulting from the anodization process is not as non-stick as traditional non-stick surfaces, but as a benefit it is not toxic.
  • Light weight: Since it is made from aluminum, hard anodized cookware is very light weight.
  • Heats up quickly: Due to the nature of the physical makeup of the material, it heats up quickly, and relatively evenly, which helps with a better cooking experience.
  • Can handle metal utensils: When used gently, a hard anodized pan can easily handle metal utensils without sustaining scratches.

Anodized vs Hard Anodized

Anodization of aluminum is a self-limiting process—as oxygen ions are being deposited on the surface of the aluminum, and acid which is facilitating the process corrodes the resulting oxidation. Basic anodization creates a coating that is about 0.0002”-0.0006” thick. By using a higher voltage electrical current it is possible to increase the thickness of the coating to be 0.002” (or more), resulting in what is referred to ask ‘hard anodized’.

Selecting the Right Hard Anodized Cookware

Hard anodized cookware is a preferred alternative to traditional non-stick cooking surfaces, as hard anodized options do not leech chemicals into the food. There are two types of anodization which are utilized for producing non-stick cookware: anodized & hard anodized. Hard anodized is the preferred option as the coating of the cookware is much thicker (about 10 times as thick in certain cases) reducing the chances of aluminum from leeching into the food being cooked.

It is important to pay attention to the fine print of the product you are looking to buy, as some cookware advertised as anodized is only anodized on the outer surface, and has regular non-stick coating on the inner  part where there is contact with the food.

Aside from looking out for tricks with the wording of how the product is described, it is important to pick cookware that is hard anodized, and is specifically labeled as such. Regular anodization only has a very thin anodized coating, so there is still a distinct possibility of the aluminum leeching into the food, especially if there are minor scratches and acidic food, like tomatoes, are being cooked.

Le Creuset TNS2200-30 Toughened NonStick Fry Pan, 12-Inch
  • A cooking essential in any kitchen, this nonstick fry pan excels at cooking delicate egg dishes, pan frying, sauteing and even baking
  • Le Creusets toughened nonstick collection delivers all the ease of nonstick cooking, with a surface thats clear of harmful compounds and will never chip or flake
  • Sticky and delicate ingredients slide right off, minimizing the need for oil and making cleanup a breeze
  • Hard anodized, fully encapsulated aluminum core conducts heat quickly and evenly
  • Dishwasher safe materials and comfortable ergonomic handles guarantee easy, everyday use
Calphalon Contemporary Hard-Anodized Aluminum Nonstick Cookware, Omelette Fry Pan, 10-Inch, Black
  • Heavy gauge aluminum construction ensures even heating and is hard anodized for durability; It also makes it dishwasher safe
  • Frying pan interior includes 3 layers of nonstick 2 layers provide durability and the third layer offers easy release performance
  • The long, brushed stainless steel handles are designed to stay cool on the stove top; Pans and covers are also oven safe, making it ideal for finishing a gourmet dish
  • Flat, wide bottoms heat evenly and provide plenty of room for cooking; The sloped sides are designed for easy tossing and rolling
  • The nonstick surface means you can cook healthier using less fat, with effortless cleanup; Comes with Calphalon's full lifetime warranty
All-Clad HA1 Hard Anodized Nonstick Frying Pan with Lid, 12 Inch Pan Cookware, Medium Grey -...
  • 12-inch fry pan with wide flat base and versatile low-profile shape; Dimension: 30 cm; Oven compatibility:Yes; Heat source:INDUCTION-GAS-ELECTRIC-CERAMIC-HALOGEN
  • Hard Anodized aluminum construction for fast, even heating and easy cleanup; stainless-steel bonded Anti-Warp base; optimized for induction.Clean any cooking residue with a mixture of baking soda and water
  • PFOA-free nonstick scratch resistant coating for healthier cooking with less fat; secure-fitting lids trap in heat and moisture and allow for checking on food at a glance
  • Stainless-steel handles contoured for a comfortable hold and permanently secured with stainless-steel rivets ; Dimension : 30 Centimeter
  • Oven safe to 500 degrees F (without lids); dishwasher-safe, handwash recommended; limited lifetime warranty

Last update on 2020-07-05 / Affiliate links / Images from Amazon Product Advertising API