Add hot water to speed up this process.) Sometimes the baffle is missing – don’t worry about that. (If there is ice in the reservoir, allow to melt and then drain. The baffle should just pull right out, depending upon the model cooler you have. This is a white plastic or stainless steel plate/tube assembly that lifts straight out. Once the top is off, remove the baffle inside the reservoir as well. Take your time and figure out how your top comes off. Some tops are a pressure fit and others require a twisting motion.