Nothing. But the alternative isn't great either. Its more costly and vastly more negative from a PR perspective, for McDonalds to force franchisees to change i

Nothing. But the alternative isn't great either. Its more costly and vastly more negative from a PR perspective, for McDonalds to force franchisees to change ice cream machinery vendors. Same thing for Taylor upgrading their own machines - with the added cost that they don't have any goodwill to start. There's an added incentive here that McD wants the legal shield up at all times - they are incentivized to keep machine error rate very low, to the cost of $$ in sales lost. Consumers greatly benefit from it - we get worse availability of ice cream when we walk in, and we are paying slightly more in menu prices, but the risk of getting poisoned from eating ice cream at McD ends up extremely low.