An apparatus for preparing infant formula to be supplied to a bottle, and methods and circuits for operating the same, are disclosed. The apparatus includes a housing having a shape for integrating together components of the apparatus. A fluid reservoir for holding fluid and configured to be coupling to the housing is provided. Further provided is a formula disc disposed at a first location of the housing. The first location defined above a dispense location of the bottle, and the formula disc having a top end and a dispense end, the formula disc further includes a plurality of slots for holding the infant formula in a powder state. The apparatus has an end plate that is coupled to the dispense end of the formula disc, and the end plate has a dispense hole, such that the end plate is rotatable relative to the formula disc.