Over the years, manufacturing became more complex and the range of packaged natural products grew.  As a result, the term clean foods emerged, encompassing the standards set out in whole, natural, and organic foods. 

• No artificial preservatives, sweeteners, colors, flavors, synthetic pesticides, fungicides, drug residues, or growth hormones.
• May include such products as water without bacteria and chemicals or poultry without antibiotics or cattle without rBGH. 
• No irradiation, ripening agents, or fumigants.  Not bleached or bromated. 
• Processed, packaged, transported, and stored to retain maximum nutritional value and positive environmental impact. 
• Processed so it might be picked at the peak of ripeness and flavor and transported with freshness in mind. 
• The handling of clean foods may include refrigerated storage and transportation and recycled or recyclable packaging materials.