OTTAWA — Canadian dairy farmers sent more than 6.8 billion litres of surplus milk down the drain between 2012 and 2021, a rate of milk-dumping higher than the U.S. and other major dairying countries. That’s the estimation of researchers who compared the total milk production of Canada’s national dairy herd with the actual amount of milk that goes out the farm gate.
The recently published study — by Dalhousie University food professor Sylvain Charlebois and academic colleagues in Michigan and Denmark — concluded that plenty of milk “vanished” from Canadian dairy farms as producers dumped it to avoid exceeding their supply-management quotas. The quantity of wasted milk, between 6.8 billion and 10 billion litres over 10 years, would be worth $14.9 billion, fill over 2,700 Olympic-sized swimming pools and feed 4.2 million people annually.
The lost milk is equivalent to 7 % of Canada’s milk production. That exceeds the on-farm milk-dumping rate in the U.S. (up to 0.5 %), Sweden (0.3 %), Finland (0.5 %), Scotland (1.8 %) and France (3.5 %), according to the research. Canada is the only country left in the world with a supply-managed dairy sector.
Milk dumping last made a media splash in February 2023 when Southwestern Ontario dairy farmer Jerry Huigen went viral with a video of himself gushing wasted milk onto the barn floor. Dairy farmers are told “just throw it down the drain. Nobody sees it, it’s OK,” Huigen complained in the social media post. “Well, it’s not OK.”
Charlebois told Farmers Forum that the video inspired his co-authors to contact him about studying the phenomenon in Canada. Because data on discarded milk is not collected in this country, the professor and his colleagues took a year to estimate the milk losses. They estimated the annual milk output of the national herd, based on cow numbers, and then subtracted milk sales volume figures published by Statistics Canada.