

When outfitting your kitchen, choosing the right cookware is essential for achieving optimal culinary results. Two popular options on the market are multilayer stainless steel cookware and stainless steel with an impact-bonded base.
But what’s the difference between these two types, and which one offers the best performance? Which option is best suited to your kitchen? In this article, we’ll explain the characteristics of these two types of stainless steel cookware, how they’re made, their advantages, and the kinds of food they’re best suited for.
Several decades ago, de Buyer designed and manufactured the first multilayer stainless steel cookware compatible with induction, offering demanding professionals an alternative to copper — the most conductive material used in cooking.
De Buyer’s multilayer stainless steel cookware, also known as "triply" or "5-ply," is made by combining several layers of different metals. These layers include stainless steel and aluminum:
Multilayer stainless steel cookware: ALCHIMY's collection
Thanks to the combination of metals, multilayer stainless steel cookware ensures uniform heat distribution not only across the base but also up the sides. This eliminates hot spots and guarantees consistent cooking.
Achieve perfect cooking results with the thermal responsiveness of multilayer stainless steel. This composition allows rapid increases and decreases in temperature throughout the entire body of the pan, sauté pan, or saucepan.
The multilayer stainless steel in your pans, sauté pans, and saucepans is perfectly suited to all types of cooking. Searing, sautéing, grilling, blanching, or simmering — everything is possible with multilayer cookware, even delicate preparations where precise temperature control is key, such as sauces and reductions.
Since some types of cooking don’t require the precision of multilayer stainless steel, and in order to offer high-quality stainless steel products at a more affordable price, De Buyer offers several ranges of cookware with an impact-bonded base.
De Buyer’s cookware with an impact-bonded base is also known as sandwich base cookware. On a body made of AISI 304 stainless steel (used for saucepans, frying pans, and sauté pans), a thick base is fixed, composed of:
In a thick layer to ensure good thermal conductivity and fast heat distribution.
To make the cookware compatible with all heat sources, including induction.
The aluminum layer in the base of the cookware provides vertical heat distribution, making it ideal for cooking by immersion in large volumes of water (pasta, legumes, etc.), for steaming, or for sautéing and browning.
The aluminum base stores heat and quickly transfers it to the food, ensuring a rapid increase in temperature.
Stainless steel cookware with a sandwich base is perfectly suited for everyday cooking—boiling pasta, rice, or lentils, blanching vegetables, making soup, preparing a leek fondue, sautéing poultry, and more.
To choose the stainless steel cookware that best suits your needs, you should consider a few key questions: What will you use the cookware for? What type of heat distribution are you looking for? What is your budget?
Fast heat-up
Slow cool-down
Very fast heat-up
Saves energy and time
Fast cool-down
Including delicate preparations
5-Ply offers better thermal responsiveness than 3-Ply, allowing for finer control over cooking.
Stainless steel offers many advantages: it's strong, durable, and versatile. However, it's a poor conductor of heat. Compared to cookware made of steel, aluminum, or copper, heat spreads more slowly in stainless steel. That’s why aluminum is added to stainless steel cookware—either as part of a clad (or sandwich) base, or layered between two sheets of stainless steel in multi-layer constructions—to improve thermal conductivity.
In addition, food-grade stainless steel is not naturally compatible with induction cooking. To make the cookware induction-ready, it’s necessary to combine food-grade stainless steel with another type of stainless steel that allows it to work on all heat sources, including induction.
Collection AFFINITY : multilayer stainless steel (5ply)
If you'd like a quick and easy overview of all our stainless steel cookware collections, here's a summary table.