As soon as a person opens a gallon of milk, they start to spoil because of various creepy crawlies that remains in the air and grows by eating such organic materials. Shrinking Jug is a concept milk container that will keep the amount of air contact with the milk at a minimum level since the container will collapse along with the remaining amount of milk. The flexible container works as a spring, when you push the top button, a valve will open and pressing down the container will lead the milk out. As you keep on forcing out the milk, the jug gets shorter and shorter. After taking out your desired amount of milk, close the valve and you will get a shorter container according to the amount of milk inside.