Lox vs. Smoked Salmon: What's the Difference?

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Lox vs. Smoked Salmon: What's the Difference?
They're easy to confuse because they look nearly identical.
November 03, 2022
Homemade Bagel and Salmon Lox with Cream Cheese and Dill

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By: Food Network Kitchen
Related To:
Smoked SalmonFishSalmonSalmon Mousse
By Dana Beninati for Food Network Kitchen
Dana is a host, chef and sommelier.
Some would argue a fresh New York City bagel is sorely incomplete without salmon. The hustle and bustle of a classic deli doesn’t allow time for questions at the counter. When you step up to order, you must be fully prepared, which includes the knowledge of what type of salmon should top your bagel – salmon spread, Nova lox, gravlax or smoked salmon. Keep reading to learn what separates these styles of salmon, how to distinguish them by look and what your tastes prefer.
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What Is Lox?
Lox is salmon fillet that has been salt cured. Curing is simply the practice of using salt to draw the moisture out of an item, thereby preserving it. This process was created by our ancestors long ago, who did this to preserve many foods prior to refrigeration, especially proteins like meat and fish. In a process known as “dry curing,” salt is mixed with sugar, herbs or spices and packed around the protein for some time, usually a few days. It is then rinsed away, resulting in an item with increased flavor and shelf life. This is the process behind some of our favorite savory items like ham and pepperoni. In the case of salmon lox, we often see the salt flavored with dill or lemon zest.
Salmon fillet with coarse ground pepper, grilled over a cedar plank.  This cooking method gives the salmon great cedar smoke flavor and color.  Shallow dof.

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What Is Smoked Salmon?
Smoked salmon is just that – salmon that has been smoked with wood to enhance its flavor and texture. It is easy to mistake smoked salmon for lox, as the two look very similar. This oversight is perpetuated by the fact that some smoked salmon is cured before smoking (for even more flavor enhancement). Whether cured or not, smoking can be completed in one of two ways – cold or hot. Both cold and hot smoked salmon carry the flavor of the smoke, so their differing texture will likely be the determining factor of which you prefer.
Cold smoking is the process of creating smoke from wood chips and letting it cool (to below 85 degrees Fahrenheit) before it meets the salmon. Cold smoked salmon strongly resembles lox as both share a characteristic shine and are served thinly sliced. Like lox, cold smoked salmon is raw.
In contrast, hot smoked salmon (pictured above) is prepared under direct contact with warm smoke (around 150 degrees Fahrenheit), so the fish is cooked during the process. This leads to a flakier salmon, that looks dull and meaty.
Gravadlax slices with Dill, lemon and coriander

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What Is Gravlax?
Just as the name suggests, gravlax is a style of salmon lox. “Grav” is Swedish for grave. The name hints at how the dish was originally made in Scandinavian countries of the past. Historically, sides of salmon were buried under salt, often outside under mounds of snow. Much like a grave, the salt and snow kept the salmon well protected as it cured, hence the name. Nowadays, the term gravlax is interchangeable for lox at most delicatessens.
Bagel brunch board with smoked salmon and fresh vegetables.

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What Is Nova Lox?
Nova lox is named after Nova Scotia, a Canadian region most famous for its wild Atlantic salmon. This style of salmon is both cured and cold smoked. Nova lox is arguably the most popular topping to a classic New York City bagel and has a robust flavor that is both salty and smoky.
Lox vs Smoked Salmon: What's the Differences?
While lox is cured in a salty spice blend, smoked salmon may or may not be cured but is always smoked and has a slightly smokier flavor.
  • Sight: Lox and cold smoked salmon are both glossy and thinly sliced. Hot smoked salmon looks like poached fish. It is meaty and easily flakes into large pieces.
  • Smell: Lox and smoked salmon both have pungent, yet pleasant aromas. The smell of smoke is easily recognizable and can help you distinguish cold smoked salmon from lox, as the two look so much alike.
  • Touch: All are served chilled. Lox and cold smoked salmon are a bit slimy in feel. Hot smoked salmon is firm and meaty.
  • Flavor: Lox is generally saltier than smoked salmon. Both can be herbaceous, briny and pleasantly fishy. Smoked salmon will have an added boost of savory flavor provided by the wood chips.
 
I had forgotten this-- I eat smoked salmon all the time and thought they were the same thing.


Lox has lower levels of calories, fat, and cholesterol. However, it has a far greater salt concentration than smoked salmon, making it the less healthy option. On the other hand, smoked salmon has a greater protein content and cold-smoked salmon, in particular, has the greatest levels of calcium and iron. Although lox is lower in calories, fats, and cholesterol, it has high salt content. As you might know, it’s strongly advised against consuming too much salt since it might cause cardiac issues. Furthermore, lox is a raw fish, making it a poor choice for those with sensitive stomachs.

Lox vs. Smoked Salmon: Nutritional Profile​

Category (100g)LoxCold-Smoked SalmonHot-Smoked Salmon
Calories99110193
Carbs0g0g0.9g
Fat3.7g4g12.3g
Saturated fat0.8g1g2.1g
Cholesterol20 mg45 mg46.8 mg
Sodium1.7g900 mg593.3 mg
Potassium149 mg330mg308.6 mg
Protein16g18g19.3g
Fiber0g0g0g
Sugars0g0g0g
Vitamins & Minerals
Vitamin A1.5%1.5%1%
Calcium0.7%2%0%
Iron4%5%0%
 
I had forgotten this-- I eat smoked salmon all the time and thought they were the same thing.


Lox has lower levels of calories, fat, and cholesterol. However, it has a far greater salt concentration than smoked salmon, making it the less healthy option. On the other hand, smoked salmon has a greater protein content and cold-smoked salmon, in particular, has the greatest levels of calcium and iron. Although lox is lower in calories, fats, and cholesterol, it has high salt content. As you might know, it’s strongly advised against consuming too much salt since it might cause cardiac issues. Furthermore, lox is a raw fish, making it a poor choice for those with sensitive stomachs.

Lox vs. Smoked Salmon: Nutritional Profile​

Category (100g)LoxCold-Smoked SalmonHot-Smoked Salmon
Calories99110193
Carbs0g0g0.9g
Fat3.7g4g12.3g
Saturated fat0.8g1g2.1g
Cholesterol20 mg45 mg46.8 mg
Sodium1.7g900 mg593.3 mg
Potassium149 mg330mg308.6 mg
Protein16g18g19.3g
Fiber0g0g0g
Sugars0g0g0g
Vitamins & Minerals
Vitamin A1.5%1.5%1%
Calcium0.7%2%0%
Iron4%5%0%

No doubt hot smoked salmon is the ONLY choice for me, but its not as easy to find as lox in nyc....
 
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