I have 2 piles. I put all the manure from the goats, donkeys and chickens in, plus all veggie scraps from the kitchen, weeds, leaves, dead flowers, etc... I never use dairy or meat, just don't think it's worth the hassle. I let my chickens do all the mixing for me. They turn it into great looking compost! I haven't had to deal with the donkey manure in the pasture at all, I love how they run over and scratch it all up and leave me easy to manage broken up compost material! Coffee grounds, tea bags and even the filters can go in too, along with egg shells. Unless you're using them else where.
Mine does tend to get on the dry side, we are drought stricken and I don't feel like dragging the hose way out there. It never stinks, but I think it has a very mushroomy smell.
Don't know if it's the "correct" way, but it's the way I do it, and seems to work pretty well. Good luck!