A drinkware system, comprising: a drinkware container having a container body that extends between a proximal end and a bottom wall at a distal end , the drinkware container having a chamber configured to receive and hold a liquid and a heat sink for effecting heat transfer with a liquid in the chamber ; and a cooling unit operable to cool the heat sink in the drinkware container , the cooling unit comprising a first heat sink configured to contact the bottom wall of the drinkware container when the drinkware container is placed on the cooling unit , one or more thermoelectric modules in thermal communication with the first heat sink , and a second heat sink in thermal communication with the one or more thermoelectric modules so that the one or more thermoelectric modules are interposed between the first heat sink and the second heat sink , wherein the one or more thermoelectric modules are operable to draw heat from the first heat sink and transfer it to the second heat sink to cool the first heat sink , the cooled first heat sink drawing heat from the drinkware container to cool the drinkware container ; characterised in that : the cooling unit is configured to removably receive the drinkware container thereon; the container body has an outer wall and an inner wall spaced inward of the outer wall to define a cavity therebetween, the inner wall extending between an opening at the proximal end of the container body and a base wall , the inner wall and base wall defining the chamber that is configured to receive and hold a liquid, and the bottom wall spaced below the base wall ; the heat sink of the drinkware container is disposed in the cavity , the heat sink in thermal communication with one or both of the inner wall and the base wall for effecting heat transfer with a liquid in the chamber via the base wall and/or the inner wall ; and the first heat sink of the cooling unit comprises a body that includes one or more cavities in which phase change material (PCM) is disposed. a drinkware container having a container body that extends between a proximal end and a bottom wall at a distal end , the drinkware container having a chamber configured to receive and hold a liquid and a heat sink for effecting heat transfer with a liquid in the chamber ; and a cooling unit operable to cool the heat sink in the drinkware container , the cooling unit comprising a first heat sink configured to contact the bottom wall of the drinkware container when the drinkware container is placed on the cooling unit , one or more thermoelectric modules in thermal communication with the first heat sink , and a second heat sink in thermal communication with the one or more thermoelectric modules so that the one or more thermoelectric modules are interposed between the first heat sink and the second heat sink , wherein the one or more thermoelectric modules are operable to draw heat from the first heat sink and transfer it to the second heat sink to cool the first heat sink , the cooled first heat sink drawing heat from the drinkware container to cool the drinkware container ; the cooling unit is configured to removably receive the drinkware container thereon; the container body has an outer wall and an inner wall spaced inward of the outer wall to define a cavity therebetween, the inner wall extending between an opening at the proximal end of the container body and a base wall , the inner wall and base wall defining the chamber that is configured to receive and hold a liquid, and the bottom wall spaced below the base wall ; the heat sink of the drinkware container is disposed in the cavity , the heat sink in thermal communication with one or both of the inner wall and the base wall for effecting heat transfer with a liquid in the chamber via the base wall and/or the inner wall ; and the first heat sink of the cooling unit comprises a body that includes one or more cavities in which phase change material (PCM) is disposed. <EOS>