Lime in the Food and Produce industry

Grupo Calidra, Graymont's strategic partner, is able to provide high-purity hydrate to the food industry.


Among the many industry sectors using this food-grade product are tortilla and corn-chip makers. All quality tortillas are treated with lime, while corn is first soaked in milk-of-lime before its conversion to cornmeal.

Other uses of lime in the food and produce sectors involve:

  • Dairy industry
  • Glue and gelatin
  • Baking industry
  • Fruits and vegetables

One of the more interesting markets that Graymont is involved with is the controlled-atmosphere storage of fruits and vegetables. In this application, bags of hydrated lime are placed on racks in a storage room or warehouse to absorb the carbon dioxide (CO2) that exudes from the ripening fresh produce. In this manner, a higher ratio of oxygen to CO2 is maintained, permitting vegetables and fruit to be stored fresh for much longer periods. When placed in close proximity to the produce, the CO2 easily penetrates the multiwall paper bags and into the lime. For apples, lime consumption averages about 1 to 1.5 pounds per bushel. Pears, plums and tomatoes also have been stored this way in Canada and the Northeastern United States, Oregon and Washington. In California, this technique is commonly employed in storing lettuce.

To purchase high-purity hydrate for your food application, please contact Grupo Calidra.

Did you know?

Limestone, the most important and abundant sedimentary rock in the world, is formed by the compaction of the remains of coral animals and plants on the bottoms of oceans.