A system and method for producing a packaged food article or beverage may include processing a first food source including a spoilage microorganism along a first processing path, which may limit temperature of the first food source to be below a temperature level that causes the spoilage microorganism to be inactivated. A second food source may be processed along a second processing path, which may heat the second food source to be in a predetermined temperature range that causes spoilage microorganisms in the second food source to be substantially inactivated when in the predetermined temperature range for a predetermined period of time. A package may be filled with the first and the second food sources. The second food source, when mixed with the first food source, may be in the predetermined temperature range for the predetermined period of time in the package to inactivate the spoilage microorganism.
