A Magnet That Tells You When Your Food Has Expired?

When cooking meals, the one thing that annoys me the most is reaching into the fridge for an ingredient and discovering that it has gone bad. Or when you pour a glass of  milk and take the first sip and discover that the milk has expired. All of these problems could be solved with the new QR code magnets design. When you first buy a perishable product, you scan the QR code located on the food with the magnet. The technology inside the magnet will reset itself and start a new expiration timer for the food you just scanned. The magnet is then placed on the fridge door and will keep track of the time left on your food. As time passes, the magnet will change colors to notify you of how quickly the expiration date is approaching. When the magnet is green, the food is fine to eat. When the magnet is orange, the food is still good to eat but is close to expiration. And when the magnet turns red, it signals that the food has expired and should be thrown out. This product is currently still in the design phase, but I think that in the future it would be a good item to have. Individuals could save themselves a lot of money because the magnet would help reduce the amount of food thrown away. The red magnets will also protect people from upset stomachs because they will no longer have to guess to see if the food is good or not.

Overall, I would give this product a 7/10. I think this product is useful, but there are also other methods of keeping track of food expiration dates such as writing them down on paper or recording it on food containers that don't cost a cent. I am also unsure of how accurate the QR codes and magnets will be at predicting the actual expiration date. However, I would definitely give this product a try if it comes on the market and see if it really will make managing the food in my fridge easier.