The dish soap remnants result nitrate levels in the milk of 500 milligrams per kilo, well over the 150 milligrams limit set by Sweden’s National Food Administration (Livsmedverket), according to Arla spokesperson Tobias Wåhlén.
Only very small quantities of the milk are believed to have been consumed.
“We’ve been able to trace nearly all of it to our warehouses and to our large customers. We have complete control over most of it,” Wåhlén told the TT news agency.
Around 300 containers of the tainted milk were sent to stores in western Sweden. The stores have been informed and the milk is to be removed from the shelves, but a few packages may have ended up in the hands of customers.
“It’s not a major health hazard. You hardly notice anything when you drink the milk. Nor does it lead to any discomfort. We’re recalling the milk because the product isn’t within the accepted [nitrate level] limits,” said Wåhlén.
The packages with high nitrate levels are 0.3 litre regular milk (3% milk fat) and 1.5 litre västkust (‘west coast’) regular milk, both with February 4th expiration dates.