The Price of Crisis: Mayonnaise Hikes a Symptom of Japan's Inflation Woes Ajinomoto will raise prices on mayonnaise and other products by 6 to 10% starting in December, following its competitor Kewpie.
This decision reflects the broader economic context of rising costs in Japan.
Japan imports most of its wheat, which is sold to flour millers and other companies at an average price that has increased 12% between October and March.