My notes from the Peoria Evening Star's March 10, 1926 edition -
CORN PRODUCTS CO. USES FIFTY MILLION BUSHELS "Robert Sherman, chemist at Pekin plant, spoke to Lions Club Tuesday. Pekin plant grinds 50,000 bushels of corn daily. Primary products at Pekin and four other plants are starch, corn syrup or glucose, corn sugar, corn oil, dextrine, gluten feed and oil cake meal. A 56-lb. bushel of corn yields 35 lbs. of starch, sugar, syrup or dextrine; 1.5 lbs. of corn oil, 13 lbs. of gluten feed and 2 lbs. of oil cake meal. Most gluten feed is shipped to New England and eastern states as feed for dairy herds near large cities."
So it appears the plant was back in full operation two years (and likely much sooner) after the explosion.