Why do we have to separate cans and PET bottles in the bags?

When Returpack picks up your bags in a store or at a deposit point, we do this with the same trucks that pick up the cans and bottles from the store's deposit machines. The trucks are divided into two compartments, one for can and one for PET. In order for the recycling process to be as good as possible, we keep the two types of packaging separated all the way through the flow until the old cans and bottles become new cans and bottles.