Looking for some advice/tips on new pan maintenance, cleaning, in between boils and end of the season. I have a 2x5 ss flat pan and pre heater coming that are brand new. They are 20g 304 stainless steel. This is our second year boiling and I just made an oil tank arch. I was wondering if I need to clean it or boil some water in it first before I put the sap in, and what you guys do to maintain the pans and end of the season.