Key findings
- 1The pink color of corned beef comes from sodium nitrite reacting with myoglobin in the meat, without it, cured beef would be gray
- 2Canned corned beef is more processed than deli-sliced due to the additional cooking, shredding, and canning steps
- 3Home-brined corned beef using just salt, spices, and a curing salt is less processed and allows control over additives
Why is Corned Beef Level 2 on average?
Corned beef gets its name from the large "corns" (grains) of salt historically used for curing. Modern production soaks beef brisket in a brine of water, salt, sugar, sodium nitrite (for the characteristic pink color), and pickling spices for 5-10 days. Canned corned beef undergoes additional processing: the meat is cooked, shredded, packed tightly into cans, and heat-sterilized. Some canned versions add sodium phosphate for moisture retention and potassium chloride as a salt substitute.
How 95 corned beef products break down
Share of products at each processing level, in our analysis.
Corned Beef brand comparison
From least to most processed in our database.
How to read a corned beef label
- 1
Deli counter corned beef typically contains sodium nitrite and sodium phosphate as curing agents
- 2
Canned corned beef may list additional ingredients like potassium chloride and sodium phosphate
- 3
Look for "uncured" corned beef that uses celery powder; though this is functionally similar to sodium nitrite
- 4
Check sodium content: corned beef is one of the highest-sodium deli meats due to the brining process
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Frequently asked questions
Why is corned beef pink?
The pink color comes from sodium nitrite in the curing brine. Nitrite reacts with myoglobin (the protein that makes meat red) to form nitrosomyoglobin, which produces the characteristic pink hue. Without nitrite, salt-cured beef would be gray-brown.
Is canned corned beef ultra-processed?
Canned corned beef goes through more steps than deli-sliced: brining, cooking, mechanical shredding, canning, and heat sterilization. It typically contains sodium nitrite and may include sodium phosphate and other additives. In our analysis, corned beef products overall average a Processing Score of 5.0, which is Level 2; each canned product's page shows its own score.
Can you make corned beef without nitrates?
Yes. Home-cured "gray corned beef" uses just salt, sugar, and pickling spices without sodium nitrite. The result is brownish-gray rather than pink but is equally flavorful and less processed. Some specialty brands sell nitrate-free corned beef.