Del Monte are taking part in a metric downsizing by the looks of things.

I've seen their tinned food at a Thorougoods (which I believe to be a grocery name for Bargain Booze), where they not only have these 415g (!) tins, they not only also have slightly cheaper tins containing 420g (of not quite hte same product however) but I've seen 227g (˝lb) tins and 220g tins costing the same price. They even have the weights given accurately on the shelf edge, both with a price displayed as 52p.

Could you please purchase one of each item and keep the receipts. BWMA will reimburse you for your expense. Thank you.