There might be a distinction (which may not be clear in teshuvos) between a hot plate that’s used for cooking (like those old fashioned ones with the coil) and one that’s used for warming (like the modern large smooth topped ones).
There might be a distinction (which may not be clear in teshuvos) between a hot plate that’s used for cooking (like those old fashioned ones with the coil) and one that’s used for warming (like the modern large smooth topped ones).