Surely on more than one occasion you will have verified that the milk you just bought is in bad condition. Today we are talking about a discovery made by a group of researchers from the University of California at Berkley and the National Chiao Tung in Taiwan that could avoid this type of situation.
This group of researchers has created a kind of Smart stopper with a 3D printer that would be able to alert the consumer in case the contents of the bottle are in poor condition. As indicated in the study published in Nature, this system works in bottles containing liquids such as milk or juice. To do this, the plug we are talking about contains wireless circuits and sensors capable of determining if the contents of the bottle have been spoiled. Specifically, the cap is capable of detecting any small changes in the electrical signals of the bottle, resulting from the presence of bacteria. As for the consumer, he would only have to turn the bottle so that the liquid comes into contact with the cap and we know the state of the content. The idea is that this information is retransmitted wirelessly and in real time. Therefore, as the researchers say, we could use an app installed on our smartphone to find out if the bottle we are going to buy is in good condition.
Without a doubt, we are facing a really interesting discovery. Even so, it is important to keep in mind that, at least for the moment, it is a research paper.