Short answer is "I don't know" unfortunately. I'm working on figuring all of that out. I would assume there'd be fixed sizing. For the returns, I will collect t

Short answer is "I don't know" unfortunately. I'm working on figuring all of that out. I would assume there'd be fixed sizing. For the returns, I will collect the containers from the front door or a bin at the front desk and sanitize them at a commercial kitchen and return them to the food producer.