Quality & Safety
We’re here to deliver nature’s best: mineral-rich, flavor benefits, verified purity and safety in every lot, and open transparency in how we ensure it.
Sampling &
Testing Program
Our Salt Is From Nature, Not a Lab.
Our salt is harvested, not manufactured. It’s sun-dried, unrefined and rich in natural minerals and trace elements.
All full spectrum sea salts contain trace amounts of heavy metals. They’re naturally occurring in the earth’s environment. The key is to know how much is in a serving.
Understanding Units: PPB vs. mcg/serving
Lab tests show quantities in parts per billion. This figure is a ratio, not an absolute number, so it’s not a great way to understand how much exposure you’re getting in a food item. The best way to know is to translate it to micrograms per serving.
We Test Every Lot
We test every single lot – transparency is part of our brand promise. Over the past 12 months, our Light Grey Celtic® and Celtic Fine GroundTM salts averaged approximately 489 PPB in lead content which equates to 0.7mcg/serving.
Let’s Do the Math
A sweet potato may contain a lower ratio of lead per weight than salt, but we eat much larger servings. Therefore a sweet potato has 4x the lead per serving of sea salt.
Lead Per Serving in Common Foods
Here are common foods with more lead per serving (in micrograms) than Celtic Sea Salt (0.6846 mcg) based on the FDA Total Diet Study 2018-2020.
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Source: U.S. Food and Drug Administration, Total Diet Study – Market Baskets
2018–2020 Average Concentration Findings, March 2024. Water data point is from EPA Lead and Copper Rule, 40 CFR §14