
Flash cooling a pan can be tempting, especially when you want to get a head start on cleaning up after cooking. However, it can be detrimental to your cookware. Introducing a sudden change in temperature, such as placing a hot pan under cold water, can cause thermal shock, leading to warping, cracking, or even shattering. The best approach is to exercise patience and allow your pans to cool down gradually before washing them with warm or tepid water. This simple act of caution will help maintain the integrity of your cookware and ensure even heating during your next culinary adventure.
| Characteristics | Values |
|---|---|
| What not to do | Do not put a hot pan under cold water |
| Why | Thermal shock may occur, which can cause warping, cracking, or chipping |
| Alternative | Let the pan cool down naturally before cleaning with cold water |
| Alternative 2 | Use paper towels to absorb oil, add water to coat the bottom, scrape stuck bits, and then let the pan cool |
| Alternative 3 | Remove the pan from the heat for a couple of minutes and lower the burner temperature |
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What You'll Learn

Let the pan cool down naturally to avoid thermal shock
Flash cooling a pan can cause thermal shock, which may ruin your cookware. To avoid thermal shock, let your pan cool down naturally before cleaning it with cold water. Thermal shock occurs when a hot pan is placed under cold water, causing the pan's temperature to rapidly decrease. This can lead to warping, cracking, or chipping of the pan. The bigger the temperature difference, the greater the shock. Even a small amount of cold water at the bottom of your sink can be enough to cause damage.
To prevent thermal shock, it is best to let your pan cool down gradually. You can place it on a cool burner and lower the burner temperature. If you are in a hurry, you can speed up the cooling process by adding small amounts of tepid water to the pan after letting it cool briefly. However, avoid using cold water as it can cause thermal shock. Even if the warpage is temporary and the pan returns to its original shape as it cools, repeated quenching of hot pans under cold water can damage the cookware over time.
If you want to get a head start on cleaning before the pan has cooled down completely, you can de-glaze the pan with a small amount of water, wine, or stock. Pour off the liquid and set the pan aside to cool completely before washing it. This will help loosen any stuck-on bits, making it easier to wash the pan once it has cooled.
Additionally, when washing a cast iron pan, avoid using soap as it can remove the oil and seasoning. Instead, clean the pan with a stiff brush and hot water, then towel dry immediately to prevent rusting. Applying a light coat of cooking spray or vegetable oil after washing can also help maintain the seasoning.
By letting your pans cool down naturally and avoiding thermal shock, you can extend the lifespan of your cookware and ensure even heating and cooking performance.
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Avoid using soap to clean cast iron pans
Flash cooling a pan involves introducing a sudden change in temperature by placing a hot pan under cold running water or dipping it in a sink full of cold water. This is not recommended as it can cause the pan to warp, crack, chip or shatter. Warped pans are a particular problem as they don't cook evenly and won't sit flat on an induction hob.
When it comes to cast iron pans, there are differing opinions on whether to use soap to clean them. Some people believe that soap should never be used on cast iron as it can remove the seasoning—the layers of polymerized oil that create a smooth, protected, non-stick surface. Soap can also cause rusting, especially if the pan is left to sit in water or is not dried immediately after washing.
However, others argue that modern soaps no longer contain lye or borax, which were the chemicals that stripped the seasoning from cast iron pans. These people believe that it is safe to use mild soap in small amounts to clean a cast iron pan, as long as the pan is thoroughly dried afterwards.
If you want to avoid using soap on your cast iron pan, there are several alternative methods you can try:
- Use paper towels or a cotton rag to wipe the pan with oil while it is still hot after cooking.
- Sprinkle the pan with salt and scrub with a chainmail scrubber.
- Rub the pan with a mixture of salt and oil.
- Rinse the pan with warm water and dry it thoroughly before wiping it down with an oiled towel.
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Use paper towels to absorb oil
Flash cooling a pan by introducing a sudden change in temperature, such as by placing a hot pan under running water or in a sink full of water, can cause the pan to warp, crack, or chip. This is because the layers of metal in the pan expand and contract at different rates when exposed to sudden temperature changes, causing the pan to pull against itself. To avoid this, it is recommended to let the pan cool down gradually on the stovetop or by adding small amounts of tepid water to the pan.
One way to help cool a pan and absorb excess oil is to use paper towels. Paper towels can be placed under the pan to absorb any oil that may leak or drip from it. This helps to prevent oil from pooling on the stovetop or countertop and creates a safe and easy cleanup. It is recommended to use multiple layers of paper towels to absorb as much oil as possible and to prevent the oil from soaking through to the countertop or stovetop.
Additionally, paper towels can be used to absorb oil directly from the pan. After removing the food from the pan, use paper towels to wipe out the excess oil. This helps to remove the majority of the oil before washing the pan with water and soap. This method is especially useful for thicker pans, such as cast iron or carbon steel pans, which are less susceptible to warping and cracking.
When using paper towels to absorb oil, it is important to consider the environmental impact. Paper towels can be composted, especially if they are made from recyclable materials. However, if you are frying food regularly, the use of paper towels can be excessive. In this case, it is recommended to use alternative methods, such as wire cooling racks, brown paper bags, cloth dishtowels, or slices of stale bread, in conjunction with paper towels to reduce waste.
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Deglaze the pan with water to get a jump start on cleaning
Deglazing a pan with water is a great way to get a head start on cleaning and can be done regardless of whether you're making a sauce or not. It's a simple process: first, remove the cooked food from the pan and pour out any excess oil or liquid. Return the pan to the heat and pour in a small amount of water—just enough to coat the bottom of the pan. This will help to loosen any stuck-on food particles and make cleaning easier. You can then set the pan aside to cool completely before washing it.
It's important to note that you should avoid using a non-stick pan for deglazing, as the main principle of deglazing relies on food particles sticking to the pan and caramelizing. Non-stick pans prevent this from happening, resulting in less flavourful sauces. Instead, use a stainless steel or cast-iron pan, which conducts heat evenly and helps food caramelize and brown.
While deglazing with water is a great option, you can also use other liquids such as wine, stock, vinegar, or juice to both enhance the flavour of your dish and facilitate the cleaning process. Just be mindful not to introduce a sudden change in temperature, especially with thin non-stick pans and cookware made with glass or stoneware, as this can cause the pan to warp, crack, or chip. Instead, let the pan cool briefly before adding small amounts of tepid water to speed up the cooling process.
Deglazing is a fantastic technique that not only adds flavour to your dishes but also simplifies the cleaning process. By mastering this technique, you'll be able to create delicious sauces, gravies, and broths while keeping your pans in optimal condition.
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Cool the pan by removing it from the heat for a few minutes
Flash cooling a pan can damage it beyond repair. It is always recommended to let the pan cool down for a few minutes before attempting to wash it. This is because metals expand when heated and contract when cooled. This phenomenon is called thermal expansion and thermal contraction. A sudden change in temperature can cause the pan to pull against itself, resulting in warping, cracking, or chipping. Warped pans are a major problem because they don't cook evenly. They allow oil to pool on one side and don't sit flat against an induction or electric cooktop.
To cool a pan, simply remove it from the heat for a few minutes. You can also lower the burner temperature. If you are in a hurry, you can speed up the cooling process by adding small amounts of tepid water to the pan after letting it cool briefly. However, it is important to avoid using cold water, as this can cause thermal shock and damage the pan. Even a small amount of cold water in the bottom of the sink can cause warping.
If you want to get a head start on cleaning, you can de-glaze the pan with a cup of water, as you would when making gravy. Pour off the liquid and set the pan aside to cool completely. You can also use paper towels to absorb any oil, and then add just enough water to coat the bottom of the pan. After letting the pan cool, you can wash it with warm, soapy water.
It is worth noting that the type of pan you are using also matters. Thicker, well-constructed pans are less susceptible to thermal shock than thin non-stick pans and cookware made with glass or stoneware. Cast iron pans, in particular, should be allowed to cool completely before washing, and it is recommended to avoid using soap, as it can remove the oil and seasoning necessary for these pans. Instead, clean cast iron pans with a stiff brush and hot water, and towel dry immediately to prevent rusting.
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Frequently asked questions
Flash cooling a pan is not recommended as it can cause thermal shock, warping, cracking, or chipping. It is best to let the pan cool down to room temperature before washing it with cold water.
Flash cooling a pan can cause thermal shock, which can lead to warping, cracking, or chipping of the pan. Warped pans are a major problem as they don't cook evenly, allowing oil to pool on one side.
Yes, one alternative is to use paper towels to absorb any oil after cooking, and then add a small amount of water to coat the bottom of the pan. You can then let the pan cool and wash it after. Another option is to deglaze the pan with a small amount of water and then set it aside to cool completely before washing.











































