It had to happen: RFID tags in the bar. EWeek reports that a beverage company is now selling an RFID attachment for bottles.

“‘The software converts the tilt into an estimated volume, and the conversion is automatically perfected based on the history of each bottle; hence it becomes more accurate over time and adapts to each bartender’s habits. When the bottle is empty, our sensor knows it and the software readjusts the historical pours of each bottle to the known volume of the bottle,’ said Beverage Metrics CEO David Teller, who said his company has between $5 million and $10 million in annual revenue. ‘Our system reconciles pours to ring-ups and recipes and automatically decides what is a long pour that should be changed to two pours [and] when to combine short pours in sequence.’ “