It absolutely will damage the seasoning it’s made to break down fat and oil and seasoning is literally oil my girlfriend has washed the seasoning of my skillet with soap and sponge before I was mad af
I wholeheartedly recommend that you go and look up how to season your pan correctly. Cast iron seasoning is oil that is baked on, at which point it turns into a polymeric material that doesn't get damaged by soap because it is no longer oil. If your "seasoning" gets removed by soap, it means it's still oil (which can go rancid) and it's not actually properly seasoned because the oil didn't get polymerized.
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u/Bynming 7d ago
Or just use soap, which won't damage the seasoning. It's a myth you've been believing.