Soldato
Most milk comes in a clear coloured top. My dad worked in food packaging and he said the manufacturer of the milk tops must have saved a couple of quid per 1m tops. If 6.5bn milk is sold a year, that will be just £6k a year saved on not using coloured milk tops....most the weight is probably water too since rice weighs almost nothing dry
usual ratio is 1part rice and 2 parts water.
220g of microwave rice then is probably around 73g rice and the rest water with a few grams of flavouring
Must be literal penny pinching per packet cutting from 250g to 220g, I bet most the money is saved in the packaging if it gets smaller...