Food isn't like garments or other products traded on world markets.
The issue of food is filled with emotion. Intermittent uncertainty in food markets will animate people to act when they would otherwise remain calm. No country, for example, wants to run out of food or watch sky-high prices push people into poverty and malnourishment. That can lead to riots or even revolutions. When emotions are running high enough, grain exporters and importers may take extreme measures to prevent a shortage, like hoarding and panic-driven wholesale purchases. In other words, the overreaction of market players will act like a pistol to the head, creating a crisis when none should exist. Will current prices stay high and volatile? Probably yes.