Edible payloads can be partially or fully polymerized by a system that receives the payloads into still liquid that prevents or restricts contact with other payloads, and controls an amount of time to achieve a desired degree of polymerization. An enrobing system can include a main fluid channel and a payload channel intersecting the main fluid channel Fluid can be directed from a fluid source coupled to the main fluid channel such that fluid flows upwardly into the payload channel to form a stagnant region of liquid. The payload can be directed through the stagnant liquid of the payload channel and through the flowing liquid of the main fluid channel