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Celtic Sea Salt / Halite

Celtic Sea Salt with a wooden spoon

Celtic Sea Salt for a mineral saline hit

Quiet mineral depth. Light grey tone from ocean and clay. celtic sea salt is the kitchen’s calm accent, hand-harvested in the Guérande marshes and left unrefined so natural moisture and trace minerals remain. Its story is craft and place. Its use is simple: finish, don’t shout. 

Science and Composition


Chemical Composition
At heart celtic sea salt is halite, predominantly sodium chloride. Unlike highly refined table salt, unrefined sea salts retain small amounts of other minerals.

Analytical work on sea salts shows magnesium, potassium and calcium present at milligram-per-gram levels, with trace amounts of iron, zinc and manganese.

The balance varies by salina and season. These minerals influence flavor and mouthfeel rather than nutrition in a meaningful sense.


Nutritional Composition
The primary nutrient in celtic sea salt is sodium, supplied as sodium chloride. Sea salts typically contain minor amounts of magnesium, potassium and calcium, though concentrations depend on source and processing. As with all salts, celtic sea salt is not a significant source of vitamins and is not a reliable source of iodine unless enriched. Nutritionally, its value is culinary: texture, solubility curve, and clean salinity.

Health Benefits
A quick google reveals the most-asked queries include “Benefits of celtic sea salt” and “Celtic sea salt benefits.” Sea salts can contain small amounts of minerals such as magnesium, potassium and calcium, which shape taste and may contribute to electrolyte balance when present in foods. However, salt intake should remain moderate and within daily sodium guidance. The FDA recommends keeping intake under 2,300 mg sodium per day for adults. 


Heritage and Function


Cultural Significance & Historical Significance


The Guérande marshes preserve a lineage of salt-making where sea, sun and wind are the only engines. Hand harvesting and sun drying continue in the same basins that have fed French kitchens for centuries. The PGI protects both the methods and place names, ensuring celtic sea salt remains tied to its terroir.


Flavor Profile


Expect a clear saline opening, soft mineral mid-palate, and quick fade. Moist crystals dissolve gradually, leaving a rounded finish without harshness. On fresh fruit, raw seafood and soft cheeses, celtic sea salt tastes calm and precise.



Fun Tidbits

  • The paludier’s rake pattern is as recognizable as a signature.

  • Nature et Progrès is one of France’s oldest agro-ecological labels and often appears on Guérande salts.

  • Fleur de sel, skimmed from the surface, is a sister product with a finer crystal.

La Botanique Sacrée's Approach


Why we use it
We choose celtic sea salt for a mineral backbone that reads clean and modern. It carries aromatics without overshadowing them and adds texture that feels crafted rather than industrial. In blends, celtic sea salt supports citrus, berry pigments and smoke with a poised salinity.

Sourcing information
Our celtic sea salt is Guérande origin, unrefined, unwashed and free from additives, with documentation aligned to PGI criteria. We also work with a fine and naturally dried format when a flowable grain is required for precise dosing.


Products featuring Celtic sea salt

DILL PICKLES: fine celtic sea salt binds dill, lemon and dulse into a tangy table sprinkle.

LOVIN' LOVAGE: herb-led composition with celtic sea salt as mineral base.

ROSEMARY'S BABY: dual rosemary over celtic sea salt for green-pine clarity.

SACRED REAPER: smoked paprika and Carolina Reaper framed by celtic sea salt .

VANILLA MAPLE: lucuma and vanilla balanced with celtic sea salt for sweet–saline finish.



Celtic Sea Salt Planes

Curated Botanicals

La Botanique Sacrée is a modern herbal apothecary crafting organic spice blends, salts, and botanicals. Rooted in ancestral plant knowledge, refined through culinary precision. No fillers. No shortcuts. Just pure compositions for functional, flavour based cooking.