United States v. Lexington Mill & Elevator Co.

Background

The United States sought to seize 625 sacks of flour shipped from Nebraska to Missouri after the flour was treated by the “Alsop Process,” which used electrically generated nitrogen peroxide gas. The flour’s owner admitted the treatment but denied it was adulterated. At trial the Government presented testimony that the process added nitrite-type substances equal to about 1.8 parts per million (calculated as nitrogen) that might be injurious; the owner’s witnesses said the amounts could not possibly harm consumers. The district jury found for the Government, but the Circuit Court of Appeals reversed on the statute’s proper construction, leading to this review.

Reasoning

The core question was whether the Food and Drugs Act condemns food merely because a poisonous or deleterious substance was added, or only if that addition may render the food injurious to health. Reading §7(5), the Court emphasized the statutory qualifying word “may” and concluded Congress required a showing that the added substance could possibly make the food harmful. The trial court’s instruction — that the character of an added substance, not its quantity or possible effect, determined adulteration — was therefore erroneous. The Supreme Court affirmed the appellate court’s reversal of the conviction, held the Government must prove potential for harm, and remanded the case for a new trial. The Court did not decide the act’s constitutionality.

Real world impact

This ruling requires regulators to prove a realistic possibility of harm before condemning food in interstate commerce, not merely detect trace poisonous substances. Food producers, inspectors, and courts must focus on the quantity and likely effect of additives when prosecuting or defending adulteration cases, and the specific seizure in this case will be retried under the correct legal standard.