Emilie Meyer
Copper cookware is beautiful and functional, but is it worth the high price tag? Copper is one of the best conductors of heat, offering superior temperature control and even cooking. It's also high-maintenance and reactive, which means it can affect the taste of your food. Copper is expensive and not ideal for everyday cooking, but it's perfect for dishes that require intense heating, rapid cooling, or meticulous temperature control. So, does it really work? The answer is yes, but it may not be the best option for everyone.
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What You'll Learn
Copper cookware is expensive
Copper is one of the best conductors of heat, which means it responds quickly to temperature adjustments, giving cooks more control over the cooking process. It heats up very quickly and evenly, so unlike cast iron, there is no need to preheat copper cookware. This means that copper cookware is great for when you need to control and maintain consistent temperatures. Since copper heats up quickly and evenly distributes the heat, it means you don't have to use as much heat to get it cooking. Copper's responsiveness—how quickly it heats up and cools down as more or less heat is applied to it—is also a reason why it is so expensive.
However, copper cookware is almost never just copper. This is because you cannot cook safely in unlined copper pots. Copper is a reactive metal, which means it will have a chemical reaction to what you're cooking, causing a metallic flavour to leach into your food. Copper pans need to be lined with a non-reactive metal like tin or stainless steel to be usable. Nowadays, most copper cookware is stainless-steel lined, which is much more durable than traditional tin-lined copper.
There are alternatives to copper cookware that are considerably less expensive. For example, 5-ply pans are made of five thin layers of different materials, including stainless steel and aluminium, with a layer of copper at the core. This construction gives all the heat-responsive and conductive benefits of copper but with none of the downsides of straight copper pans.
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It's high maintenance
Copper pans are high maintenance. They require a lot of effort to keep them looking good as new and prevent tarnishing. In the 18th and 19th centuries, people often had home help to polish and shine their copper cookware, but nowadays, you have to do it yourself. Copper is a reactive metal, so it will react with certain foods and utensils, and you need to take extra care not to damage the lining.
Copper cookware should not be washed in the dishwasher. It requires proper maintenance, which takes time, patience, and know-how. To clean copper cookware, you should use wooden utensils and softer tools to avoid scratching the lining. You should also avoid using too much heat when cooking, as copper heats up very quickly and has a low melting point. If you're using older copper cookware with a tin lining, the melting point is particularly important to keep in mind.
To get your copper cookware looking shiny and new again, you can use a bit of lemon juice or vinegar to revive its shine. You should also be mindful of what your copper cookware is lined with. Newer pieces will likely be lined with stainless steel, which is sturdy and can withstand more abrasive utensils and cleaning materials. Older, used copper pieces may have a softer metal lining like tin, which has a non-stick surface but a low melting point.
Copper cookware is not compatible with induction cooktops because it lacks the necessary magnetic qualities. If you want the benefits of copper without the downsides, you can opt for 5-ply stainless steel cookware with a layer of copper at the core. This gives you the heat-responsive and conductive benefits of copper without the high maintenance.
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Copper is a good heat conductor
Copper is one of the best heat conductors among metals. It has a high melting point and moderate corrosion rate. Due to its high thermal conductivity, copper can effectively transfer heat and quickly take up heat from its surroundings. It is also a very effective metal for minimising energy loss during heat transfer. Copper heats up very quickly and evenly, so there is no need to preheat copper cookware. This means that copper cookware is great for controlling and maintaining consistent temperatures. Copper's responsiveness—how quickly it heats up and cools down as heat is applied or removed—is another advantage.
Copper is the most commonly used metal for manufacturing conductive appliances in the United States. Metal pans, hot water pipes, and car radiators are all appliances that utilise the conductive properties of copper. Copper cookware is often lined with a non-reactive metal such as tin or stainless steel to prevent a metallic flavour from leaching into food.
Copper cookware is expensive and high-maintenance, requiring effort to prevent tarnishing. It cannot be used on induction cooktops due to its lack of magnetic qualities. An alternative to copper cookware is 5-ply stainless steel cookware, which has a layer of copper at its core. This construction gives all the heat-responsive and conductive benefits of copper, but at a lower cost.
While copper has better thermal conductivity, aluminium is better at dissipating heat to the air due to its lower density and thermal mass. Aluminium is also more resistant to corrosion and is therefore often chosen over copper for heat sinks. Copper-aluminium mixes are becoming more popular as they combine the properties of both metals at a lower cost.
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It's reactive with some foods
Copper is a reactive metal, which means it will usually have a chemical reaction to what you're cooking, causing a metallic flavour to leach into your food. However, copper cookware is often lined with a non-reactive metal, such as tin or stainless steel, to prevent this.
Unlined copper pans can react with acidic ingredients, which can break down the metal and cause copper to leach into the food. This is why copper cookware is usually lined with another metal.
Some types of copper cookware, such as egg white whipping bowls and jam pans, do not have a non-reactive metal lining. Instead, they harness copper's reactive qualities to do their job more effectively. For example, copper can stabilise the proteins in egg whites and respond to changes in temperature quickly, which is useful for cooking down jams.
Copper cookware with tin linings can be damaged with metal utensils and abrasive scrubbing, which can wear away the lining over time. Tin also has a low melting point, so it's important to be mindful of the temperature when using tin-lined copper cookware. Stainless steel linings, on the other hand, are more durable but are more prone to food sticking.
To care for copper cookware, it should be washed gently by hand with mild dish soap and warm water. Copper is a reactive metal and will tarnish with time, so it may need to be polished regularly with a store-bought polishing solution to maintain its shine.
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Copper is durable
Copper is well-known for its durability. It is a metal that is malleable, recyclable, and has excellent electrical and thermal conductivity. In fact, pure copper has the best electrical and thermal conductivity of any commercial metal. This is why it is used in power cables, transformers, motors, telephone wires, and cables. Copper is also used in industrial machinery and equipment, as well as in cars, where it has an average life of 10-15 years.
Copper is also known for its durability in cookware. Copper cookware is beautiful and has been a symbol of the culinary arts since the 18th and 19th centuries, especially in France. It is one of the best conductors of heat, which means it responds quickly to temperature adjustments, giving cooks precise control over the cooking process. This makes it perfect for everything from stews to delicate sauces and confectionery.
However, copper cookware is high-maintenance and expensive. It requires effort to prevent tarnishing and keep it looking its best. It is also a reactive metal, which means it can cause a metallic flavour to leach into food. For this reason, copper cookware is often lined with a non-reactive metal such as tin or stainless steel.
Despite the required gentle care, copper cookware can be very durable. As long as it doesn't have any holes in it, it is relatively easy to restore copper cookware to its former glory. Copper pots and pans are statement pieces in the kitchen and can last a lifetime, or longer, if cared for properly.
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Frequently asked questions
Copper is one of the best heat conductors, heating up very quickly and evenly. It is also extremely durable and has a beautiful, rustic look.
Copper is high-maintenance and expensive. It is also a reactive metal, meaning it will have a chemical reaction to what you're cooking and cause a metallic flavour to leach into your food. Copper is also not compatible with induction cooking.
Copper is a metal that requires a greater level of care. It is recommended to use wooden utensils when cooking to avoid scratching the lining. Copper should also not be exposed to too much heat, and can be revived with a little lemon juice or vinegar to restore its shine.
