A reverse vending machine is a machine where people can return empty beverage containers like bottles and cans for recycling. The machine often gives back a deposit or refund amount to the end user. This is what makes it a “reverse” vending machine: instead of the user putting in money and getting out a product (like at a candy vending machine), the user puts a product in and gets out a monetary value.
Reverse vending systems are an automated way to collect, sort and handle the return of used drink containers. The first fully-automated reverse vending machine was created by TOMRA in 1972. Reverse vending machines are especially common in regions with container deposit laws (where you get money back for returning certain containers) or mandatory recycling legislation.
The name of reverse vending machines is sometimes shortened to RVMs. They are also known as redeem machines, recycling returns machines, or can and bottle recycling machines.