Aroma that sticks around

时间:2019-03-03 03:13:05166网络整理admin

By Barry Fox To some, a freshly opened jar of instant coffee smells great. But the heady fragrance doesn’t last long because the volatile compounds that give coffee its unique aroma escape after the lid has been opened only a couple of times. Now the Hebrew University in Jerusalem has developed a coffee jar that releases its odour slowly. A glob of beeswax is stuck to the inside of the jar’s screw cap,