The fast food chain McDonalds in Japan only sells small portions of french fries for a week due to delivery problems.
From December 24th to 30th, the portion sizes will be limited to avoid further bottlenecks, the company said.
The reason given by the group was that the import of potatoes had been delayed.
This is due to the flooding in the port of Vancouver in Canada and the general logistics problems caused by the Corona crisis.
To compensate for this, efforts are being made to import by plane.
Around 2900 McDonalds fast-food restaurants in Japan are affected.
Currently, no customers in other markets are affected, said McDonalds on request on Wednesday.
The company is closely monitoring the situation around the world, said a spokesman for the group.