No, it is not recommended to use cold water to quench a hot cast-iron pan. The sudden temperature change caused by pouring cold water onto a hot cast iron pan can lead to thermal shock. This can potentially damage the pan by causing it to warp or crack.
Cast iron is a material that expands and contracts with changes in temperature. When you expose a hot cast-iron pan to cold water, the rapid cooling can cause uneven contraction, creating stress within the material. This stress can result in the pan cracking or developing other structural issues.
Instead, it is best to allow the cast-iron pan to cool down naturally or use a gradual cooling method. After cooking, remove the pan from the heat source and let it cool on a heat-resistant surface. Once it reaches a safe temperature to handle, you can then proceed with cleaning and maintenance methods appropriate for cast iron, such as gentle scrubbing with warm water and mild soap, if needed.
By avoiding sudden temperature changes and treating your cast-iron pan with care, you can help maintain its longevity and cooking performance.