Sea salt vs table salt vs kosher salt for BBQ

Salt is the most important ingredient in any BBQ rub — but the type of salt you use makes a bigger difference than you think. Grain size determines how the salt adheres to the meat, how quickly it dissolves, and how fast it penetrates the meat. This is the practical comparison of the three most commonly used types of salt in BBQ.

Table Salt — fine but problematic in a rub

Table salt is finely ground, often contains anti-caking agents (such as calcium silicate or ferrocyanide), and iodine. Its small grains dissolve quickly and clump together in a rub, leading to uneven distribution on the meat.

  • Grain size: Very fine (0.3–0.5mm)
  • Purity: High, but with additives
  • Use in rub: Not recommended — too fine, clumps together
  • Dosage correction: If you do use table salt, halve the amount compared to kosher salt

Coarse Sea Salt — versatile and flavorful

Coarse sea salt is harvested by evaporating seawater and naturally contains trace minerals that provide subtle complexity. Its coarser grains adhere well to meat and dissolve more slowly.

  • Grain size: Medium to coarse (1–3mm)
  • Purity: High, little to no additives
  • Use in rub: Excellent — good texture, adheres well to meat
  • Flavor: Slightly more complex than table salt due to mineral traces

Coarse sea salt is the standard in most professional BBQ rubs, including those from The Rub Kitchen. Learn more about the role of salt: what salt does in a rub.

Kosher Salt — the American standard for BBQ

Kosher salt is coarse, flaky in structure, and contains no additives. It is the standard in the American BBQ tradition. Its flat crystals adhere excellently to the surface of meat and dissolve evenly.

  • Grain size: Coarse, flaky (2–4mm)
  • Purity: High, no iodine or anti-caking agents
  • Use in rub: Ideal — best adhesion and most even distribution
  • Availability in NL: Less common than in the US — found at specialty stores and online

Note on dosage

Kosher salt is less dense than table salt. A tablespoon of kosher salt contains significantly less sodium than a tablespoon of table salt. If you're following an American recipe using kosher salt but are using coarse sea salt, you can use slightly less.

Which salt do you choose for BBQ?

  • For a rub: Coarse sea salt or kosher salt — both work excellently
  • For dry brining (salting in advance): Kosher salt or coarse sea salt — the large grains penetrate better
  • As a finishing salt: Flaked salt (Maldon, fleur de sel) — just before serving for a crispy bite
  • Avoid: Table salt in rubs — too fine, uneven distribution

Further reading

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