Wet tumbling brass - why is my brass getting tarnished?!

[manitou]

Also, I dry my brass on low heat in the oven on pizza trays.

 

[30dirty]

+1 for dawn soap , use lemishine, it dont take much use plenty is cheep!!!! Tripple rinse with tap water . Let dry at room temp 3 + days rotate every 24 hours

 

[Jack C Patterson]

I agree with the above too much lemon shin. I deprime, anneal, wet tumble with a 1/2 teaspoon of lemon shine and a drop of dawn. Tumble,rinse, dry. Size, trim, dry tumble with corn cob and Nu-shine. Brass stays bright and shiny forever