Will not work in the real world
In order to achieve this in practice, you would have to impliment a standardised packaging system across all food products. That will never happen! We ca not even standardise country of origin labelling in food. Food systems only ever become less standardised over time (because of economic drivers like product differentiation and competitive advantage). Plus such a system will inevitably require a high level of managment by user (beeping foods in, telling the fridge what are stock items, verus birthday presents, etc), which history says, people don't care for (people don't like technologies that make their life more difficult). Also because of the advanced technology required, such a fridge will always be more expensive as compared to other non-techo alternatives. And comparative cost is always a major factor in technology adoption.
So I return to my original point. Because the user context around food and fridges is so complex, automated systems like this example will always come up short for the majority of the market (users/potential adoptors). I agree, such a system is technically possible within a computer lab and will get lots of attention at the latest CES Conference. In the real world of consumer habits, food economy and product commercialisation, I expect any attempts to commercialise such a fridge technology will prove to be a great way for tech companies to burn a whole heap of cash for nothing.
Tech developers must appreciate the real-world applications where computer techs are useful and where they are not. Company's simply can not afford to continue take hit-and-miss guesses anymore. Its simply too expensive to do so.
