We are getting a 18-20lb. turkey this year and I want to try brining it for the first time. When I brine things I use 1/2 cup of salt and 1/2 cup of brown sugar per gallon of water plus herbs. My question is can too much of each be put in the brine. In other words, lets say it takes three gallons of liquid for the bird. That would mean I have to use 1 1/2 cups each of salt and sugar. To me that seems like a lot. Is there a maximum amount of salt and sugar that should be used or maybe I should ask if there is a minimum amount that can be used that will still work? And also, when using apple juice or cider, should less sugar be used to make up for the sweetness of the liquid?