The lettuce is touched twice once buy the picker and once by the produce clerk. That's it.
Who puts it in the plastic bag?
I am sorry, but that is not how the system works. previously stated stated how the supply line works.
In you example you mention Walmart. Walmart has numerous, large distribution centers located around the U.S.
The lettuce has to be shipped to one of these before it is shipped to the individual store. Ergo, the cost of shipping and the cost of handling, sorting and then the distribution to the store. The amount shipped to the store is based upon what the store orders. Hence, the added cost at this level placed upon the lettuce.
Then, there is the cost of transportation from the distribution center to the individual store that is added to the price of the lettuce.
Then the store has to put its designated mark-up onto the lettuce. Then, that determined the price that the consumer is charged.
So, contrary to you statement that the lettuce is touched only twice is not correct.
In addition, the lettuce is inspected by Walmart's field staff. If it does not meet Walmart's quality requirements, it is rejected at the field. Then the grower/supplier has to find another outlet for the product or dump it if another outlet can't be found.
Also, if the product doesn't meed Walmart's standard of quality at the distribution center and is rejected, then the grower/supplier is told to haul it away, no exceptions. Then the above scenario is followed.
Question: How do I know this? I was in the fruit and produce industry for nearly 40 years and had many dealings with Walmart.
Thanks for the opportunity to post this information.