An apparent explosion sparked a fire at a massive Quaker Oats plant in Iowa on Saturday, sending thick black smoke billowing over downtown Cedar Rapids. Firefighters rushed to the facility, the world's largest oat mill processing more than 2 million pounds of oats daily. No injuries were reported and all workers were safe. The fire was mostly put out by 6:25 p.m. The cause is under investigation by PepsiCo Foods US, which owns Quaker Oats. This disrupts a major food processing operation, potentially affecting oat supply chains. The incident highlights risks to industrial facilities in the region.

Could this affect oat prices or Quaker Oats products? The explosion is under investigation; no confirmed supply disruption or price change announced.