Quick Answer
What type of salt should you use for buffalo sauce and fermentation?For buffalo sauce (non-fermented): the type of salt matters minimally — kosher salt, sea salt, and table salt all provide sodium chloride. The difference is crystal size and density, which affects how much you use if measuring by volume. For fermentation specifically: never use iodized table salt — iodine inhibits the beneficial lactobacillus bacteria that make fermentation safe and flavorful. Use non-iodized kosher salt, sea salt, or pickling salt for all fermentation applications. For everyday buffalo sauce not involving fermentation: any salt works, but kosher salt (Diamond Crystal or Morton) is the standard in professional kitchens for its clean flavor and consistent results.
Does Salt Type Matter in Buffalo Sauce?
For finished buffalo sauce (hot sauce + butter + seasonings): the type of salt has essentially no impact on the final flavor when measured by weight. Salt is sodium chloride — the crystals dissolve in the sauce and provide sodium and chloride ions. Whether those ions came from kosher salt or fine sea salt makes no difference to the finished sauce.
What does matter:
- How you measure it: Different salts have dramatically different densities by volume. 1 teaspoon of fine table salt weighs ~6g; 1 teaspoon of coarse Diamond Crystal kosher salt weighs ~3g. Substituting one for another in volume-measured recipes produces wildly different sodium levels. Always measure by weight for precise results, or know the conversion for the specific salt you use.
- Iodine content: For fermentation, iodized salt is inappropriate. For non-fermented buffalo sauce, iodine is harmless and irrelevant.
- Trace minerals (in some sea salts): Some unrefined sea salts contain calcium, magnesium, and other minerals in small amounts. These minerals can very slightly affect emulsification and flavor — the effect is so subtle that most people cannot detect it in finished buffalo sauce.
Salt Types Overview
Salt Types for Buffalo Sauce and Fermentation
| Salt Type | For Buffalo Sauce | For Fermentation | Volume Density | Notes |
|---|---|---|---|---|
| ★ Diamond Crystal Kosher Salt | Excellent | Excellent | Light — 3g per tsp | Standard pro kitchen salt. Most recipes written for this |
| Morton Kosher Salt | Excellent | Excellent | Medium — 5g per tsp | Denser than Diamond Crystal — use 25% less by volume |
| Fine sea salt (non-iodized) | Excellent | Excellent | Medium — 5-6g per tsp | Good quality; slight mineral complexity possible |
| Coarse sea salt | Good | Good | Light — 3-4g per tsp | Dissolves slowly — use fine for faster incorporation |
| Himalayan pink salt | Fine | Fine | Medium | Trace minerals add negligible flavor difference |
| Pickling/canning salt | Fine | Best | Heavy — 6g per tsp | No iodine, no anti-caking. Ideal for fermentation. |
| Standard iodized table salt | Fine (for buffalo sauce) | AVOID | Heavy — 6g per tsp | Iodine safe for cooking, but inhibits fermentation |
| Fleur de sel | Finishing only | Not recommended | Light — 3g per tsp | Expensive; save for finishing, not cooking |
Salt for Fermentation: Why Iodine Matters
The single most important salt consideration for fermentation is avoiding iodine. This deserves clear explanation:
Iodine was added to table salt in the 1920s as a public health measure to prevent iodine deficiency (the cause of goiter). The iodine concentration in standard iodized salt is small — approximately 45 micrograms per gram. At these concentrations, iodine is a reliable antimicrobial agent used in surgical settings and water purification.
This antimicrobial property is the problem for fermentation. Lactobacillus bacteria — the organisms you want to cultivate during fermentation — are sensitive to iodine. At the concentrations present in iodized salt dissolved in fermentation brine, iodine can inhibit or kill the beneficial bacteria before they establish sufficient populations to create the acidic, safe fermentation environment. The result: fermentation either doesn't start, starts slowly and unevenly, or the protective acid environment doesn't develop, creating conditions where undesirable bacteria can establish.
The fix is simple: use non-iodized salt for all fermentation. The full salt ratio guidance is at fermentation salt ratios.
Salt in Buffalo Sauce Recipes
Standard buffalo sauce is already high in sodium from the hot sauce component. Frank's RedHot contains 190mg sodium per teaspoon — a 1/2 cup serving of hot sauce (the standard amount for a batch) contains approximately 4,800mg of sodium before any added salt. The finished sauce typically provides 300–400mg per tablespoon serving.
Given this, additional salt in buffalo sauce recipes should be treated as finishing seasoning rather than primary seasoning. The common mistake: adding a full teaspoon of salt to a recipe that calls for it without accounting for the hot sauce sodium. Always taste before adding salt. Use unsalted butter (as recommended in the best butter for buffalo sauce guide) to maintain control over salt levels.
Note on Sodium Reduction
For lower-sodium buffalo sauce:
- Use reduced-sodium hot sauce (Frank's makes a 25% reduced sodium version)
- Use unsalted butter (mandatory for sodium control)
- Add no additional salt to the emulsification step
- Use fresh lemon juice in addition to or in place of some vinegar — citric acid provides tang without sodium
- Add more garlic and a small amount of nutritional yeast (for umami depth that compensates for reduced saltiness)
See the guide on adjusting salt in buffalo sauce for detailed strategies.
💡 The Diamond Crystal vs. Morton Issue
Many professional recipes are written using Diamond Crystal kosher salt — it's the default in most professional kitchens and food writing. Diamond Crystal is significantly less dense than Morton Kosher Salt, so if you substitute Morton for Diamond Crystal at the same volume measurement, you're using approximately 40% more salt. This is a common cause of over-salted buffalo sauce recipes when the recipe was written with Diamond Crystal and the cook uses Morton. The fix: either weigh salt in grams (ignores the density difference entirely) or use 3/4 the volume called for when substituting Morton for Diamond Crystal.