Home UV food sanitizer concept
Over 76,000,000 people get food poisoning each year in the US. We’ve all seen the news reports about tainted salsa and the recalls for ground beef and such. For my Industrial Design studio class I have come up with a simple solution: use UV light to sanitize foods and other objects.
What you see above is a non-working form model made out of common kitchen mixing bowls, a strainer, a curtain rod finial, and some foamcore. The idea is to work out the rough size, shape and design features of the concept before finishing it up in 3D CAD.
For this concept I am using efficient UV LEDs in the lid. A transformer and timer are contained in the base of the bowl. Electrical contacts on the lid will transfer power to the LEDs when the lid is placed on top of the bowl. Food is washed and drained in the colander before being placed in the bowl. The highly reflective inner surfaces help ensure even UV light distribution. Exposure time can be varied based on the types of foods being treated. The UVC rays used do not penetrate very well so longer exposure times may be required for things like a bowl of lettuce while shorter times can be used for an apple (only the exterior skin can be treated).
There will be more details to follow as I continue to develop this concept over the next few weeks. While my initial target application is for the slow food movement, I imagine that this simple concept could have much greater implications on a global scale. Let me know what you think.