A beverage coaster includes integrated electronics, such as a power system, a load cell, an analog to digital converter and a wireless transceiver. The beverage coaster communicates with a computing device to send information, such as a first weight, a second weight, and a third weight of objects placed on the beverage coaster. The first weight may be associated with a container, a second weight may be associated with a first ingredient, and the third weight may be associated with a second ingredient. The computing device is configured to display information related to the first, second, and third weights and provide instructions to a user thereof for maintaining proper proportions of the first and second ingredients as the user adds them to the container.