The Obihiro public health center in Hokkaido inspected a local Snow Brand Milk Products Co. warehouse Thursday as the food-poisoning scandal widened.
Obihiro health center officials said Snow Brand produced about 900 bags of powdered skim milk at its Taiki plant in southern Hokkaido, 70 more than the 830 bags it reported.
The powdered skim milk has been linked to a widespread outbreak of food poisoning in western Japan in June and July.