By Alex Abdelwahab, Ottawa Metro News, August 13, 2017
When you walk into Ottawa’s first zero-waste grocery store, the first thing you notice is the writing on the wall that says “tare, fill, pay” above two scales.
The idea is that customers bring their own containers to fill up with food and household items sold at the store.
So, the tare station – tare weight is a term to describe the officially accepted weight of an empty container – ensures customers only pay for the cost of the food and not the container.
http://www.metronews.ca/news/ottawa/2017/08/13/ottawa-s-first-zero-waste-grocery-store-opens.html