Like ChixMom, I have yet to try manure tea. "Well rotted" means broken down to kill any pathogens and allow time for it to become "cool" rather than "hot" in which it would burn your plants if you applied fresh out of the chicken's bum. I've been told that you want to let it compost/rot for at least 6 months and have even heard claims of a year being best. I prefer not to mess with it, I prefer rabbit droppings which are "cold" and can be applied straight and fresh. I make a manure tea with the rabbit droppings and water my plants with it, it really does work well.