Can I use sea salt (fine) instead of kosher salt?

Yes. Use Use half the volume (1 tsp Diamond Crystal = 1/2 tsp fine sea salt). Fine sea salt measures like table salt, so the same halving rule applies.

Using Sea Salt (fine) Instead of Kosher Salt

Reviewed by the CupOrGram Editorial TeamSources: King Arthur Baking, USDA FoodData CentralMethodology

Ratio

Use half the volume (1 tsp Diamond Crystal = 1/2 tsp fine sea salt)

Good — works well with minor differences

Recipe Adjustment Notes

Fine sea salt measures like table salt, so the same halving rule applies.

The Science Behind This Swap

Fine sea salt's small crystals pack densely like table salt; trace minerals don't meaningfully change saltiness at these quantities.

Measurement Variance Note

For 1 cup references, this ingredient can vary by about 6% across brands and measuring methods (120g-136g per cup). For the most reliable substitution result, measure by weight and test a half batch first.

How Sea Salt (fine) Compares for Kosher Salt

Quality rating: good. Fine sea salt measures like table salt, so the same halving rule applies.

Check This Substitute by Recipe Type

Cakes Cookies Muffins & Quick Breads Pancakes & Waffles Yeasted Breads

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