The trouble with dairy products such as milk, is knowing when they are fresh and when they are not! I have no sense of smell, so that is not going to help me out. Maybe the Milkmaid might be able to as this jug has a sensor built in that checks the pH levels and therefore is able to tell you if the milk is fresh or not, which is handy!
These are the features for the brilliant Milkmaid;
The Milkmaid, the smart milk jug, was chosen as the winner of The Quirky + GE Project. This quart size milk jug is a glass container that plugs into a smart base that stays in your fridge. The Milkmaid is able to sense if your milk is spoiled as well as how soon it will spoil by using pH sensors. The weight sensor in the base will also tell you how many cups of milk you have left. On the milk jug itself there is a temperature sensor to alert you when your milk is left out too long to minimize the risk of developing harmful bacteria. All of this information can be accessed remotely by a free iPhone app.
This product does not have a price yet, so what would it be worth to you?