Studies have shown that the size of the glass can influence the size of the drink a bartender pours, and many people will swear that certain outfits and/or leaving big tips can get you stronger drinks at a bar, too. The only ones who don't seem to like it when this happens are the bar and nightclub owners, who collectively lose $7 billion each year due to overpouring and undercharging.
A new technology, brought to our attention by the hard-working Engadget crew, called the Beverage Tracker, has been invented by a San Francisco company to alleviate the problem. The device is an RFID-enabled liquor spout that attaches to bottles and keeps track of how much is poured for each drink. The data includes "not only the unique identification number of its microchip, but also the brand and size of liquor bottle to which it is attached, as well as the amount of liquor poured" and it is transmitted directly to the bar/club's computer system. Data collected helps with inventory management, as well as identifying bartenders who chronically overpour/undercharge. The whole system can cost from $10,000-20,000, depending on the size of the bar, but the return on the investment can take as little as 6 weeks.
Currently, the system is being used at the bars at Las Vegas's Treasure Island Hotel and Casino, as well as at about 100 other bars/clubs.











