This is a myth. I was struggling with getting a good non-stick-ability on my Lodge, until someone pointed out the 'patina' is really just burnt carbon and does nothing for non-stick. The non-stick seasoning comes from polymerized oils, which aren't affected by lye-free soaps. I haven't had any sticking issues since I've started washing my pan with soap after a messy meal and leaving a microscopic film of Crisco on after drying.
This is a myth. I was struggling with getting a good non-stick-ability on my Lodge, until someone pointed out the 'patina' is really just burnt carbon and does nothing for non-stick. The non-stick seasoning comes from polymerized oils, which aren't affected by lye-free soaps. I haven't had any sticking issues since I've started washing my pan with soap after a messy meal and leaving a microscopic film of Crisco on after drying.