RFID tags keeps track of your sake

Premium sake has to be kept at a constant temperature to maintain its quality, so a group of companies led by NTT have started a pilot program to start tagging sake bottles with RFID tags, with built-in temperature sensors. When the bottles are brought to stores, a reader lets customers check the bottle's temperature history, so that he can be sure it's been kept fresh from door to door. This will be available in the closest sake shops.