McDonald's workers share what the 'buttons' on its drink lids really mean

mirror.co.uk:

A McDonald's customer who was left confused by the 'buttons' on the lids of the fast food chain's drinks appealed for help - and employees have now revealed what they all mean.

If you make a large order and get handed a tray of drinks, the buttons are designed to help differentiate between drinks like Coca-Cola, Diet Coke and Coke Zero - without diners having to taste test them all first.

The buttons on the lid are labelled 'Diet/Light', 'No Caff', '1' and '2' - and one customer who found staff had pressed in the number one button on one of their drinks realised they had no idea what it meant.

Turning to Reddit for help, they wrote: "My question is about the McDonald's drink lids which have the 'buttons' on them. I just ordered two drinks,