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I've been going commando for years and seems to work fine for me...
I've heard a lot about the rutland gasket method - I'm intrigued but concerned about the product exposure to food.
I also looked at the permatex web site regarding the ultra-copper. There was a note about the temperature range -65°F to 700°F - What happens after 700 F? Does it start to melt? I rarely go above 600 F, but it does happen.