Alexei Volkov
Microplastics are a growing environmental concern, and their presence in sea salt has been widely reported. Microplastics are small particles of plastic that enter the oceans through various sources, including the breakdown of larger plastic items and the release of microfibers from synthetic clothing. While the health effects of microplastics are not yet fully understood, some studies suggest they may be harmful to humans. As a result, consumers are increasingly concerned about the presence of microplastics in the products they consume, including salt. Celtic salt, or Celtic Sea Salt, is a popular variety of salt known for its unique taste and health benefits. It is harvested through traditional methods and is marketed as a natural product. Given the environmental concerns around microplastics, producers of Celtic salt aim to ensure its purity and minimize contamination. However, the presence of microplastics in Celtic salt remains a possibility due to the challenges of completely isolating sea-sourced products from environmental pollutants.
| Characteristics | Values |
|---|---|
| Microplastics in Celtic Salt | Celtic salt is sea-sourced, so complete isolation from environmental pollutants is challenging. However, Celtic Sea Salt producers are aware of environmental concerns and employ methods to ensure the purity of their salt, including testing for microplastics. |
| Microplastics in Sea Salt | Microplastics have been found in various types of sea salt, including kosher salt and fleur de sel. The average concentration is around 0.01 particles per gram, and the levels are generally very low. |
| Health Risks | The health risks associated with consuming microplastics are not well understood. Some studies suggest potential harm, while others find no evidence of adverse effects. |
| Reducing Exposure | To reduce exposure to microplastics, consumers can choose brands that prioritize environmental responsibility and product purity, use non-plastic packaging, and support sustainable practices. |
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What You'll Learn
Celtic salt microplastic contamination
Celtic salt, like all sea-sourced products, is susceptible to microplastic contamination. Microplastics are tiny plastic particles, often resulting from the breakdown of larger plastic waste, which have infiltrated marine ecosystems globally. While Celtic Sea Salt producers employ methods to ensure the purity of their salt, including quality control processes and third-party testing, complete isolation from environmental pollutants is challenging.
The presence of microplastics in Celtic salt has raised concerns among health-conscious consumers who seek natural salt options. While the effects of microplastics on human health remain unclear, it is important to understand their origins and how to reduce exposure. Researchers have found microplastics in table salt, and one study estimated that approximately 14 µg of microplastics ( < 12 particles) may be absorbed by the human body annually, a quarter of which may come from sea salt consumption.
The harvesting methods of Celtic Sea Salt may play a role in mitigating the risk of microplastic contamination. Celtic Sea Salt is harvested from the coastal regions of Brittany, France, using traditional, sustainable practices. The salt is hand-harvested using a method invented by the Celts, where seawater is trapped in estuaries at high tide and guided through a series of clay-lined beds until it crystallizes. The salt farmer uses wooden rakes to collect the natural crystals, resulting in a moist, natural crystal salt with the brine still intact.
To minimize the risk of microplastic contamination, consumers can take several actions. Firstly, choosing brands that prioritize environmental responsibility and product purity is essential. While no sea-sourced product can guarantee freedom from microplastics, selecting products from cleaner waters and responsible producers can reduce the risk. Consumers can also opt for salts with non-plastic packaging, as contamination can occur during processing and packaging when particles "leak" from plastic components and materials. Additionally, consumers can support broader environmental sustainability by reducing plastic use and advocating for conservation.
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Environmental concerns and consumer considerations
Microplastics are small particles of plastic, no larger than 5mm, that come from the plastics polluting our oceans. As plastic degrades, it breaks down into smaller microplastic particles that enter our food supply through salt, seafood, and other foods. While the presence of microplastics in sea salt is concerning, it is important to note that the levels of microplastics found in sea salt are typically low. According to a study published in the journal Environmental Science & Technology, the average concentration of microplastics in sea salt was approximately 0.01 particles per gram.
Environmental concerns:
Microplastics have been identified in salts sourced from various locations, including Europe and Asia. The issue of microplastics in salt highlights the need for broader environmental responsibility. While it is challenging to completely isolate sea-sourced products from environmental pollutants, consumers can play a role in reducing plastic pollution. This includes adopting reusable items such as shopping bags, containers, and water bottles, as well as properly disposing of plastic waste. Consumers can also support sustainable practices and advocate for environmental conservation.
Consumer considerations:
To minimize exposure to microplastics, consumers can take several steps. Firstly, it is recommended to choose pure salts without any added ingredients, such as anti-caking agents or other chemicals. The packaging should ideally list only "salt" or "sea salt" as the ingredient. Additionally, opt for salts with non-plastic packaging and those sourced from cleaner waters and responsible producers. Redmond's Real Salt, sourced from Utah, and Jacobson Salt Co., sourced from the Oregon Coast, are recommended brands with lower levels of microplastics.
It is worth noting that Celtic Sea Salt, a worldwide brand, acknowledges the presence of microplastics as an environmental concern. They conduct annual third-party testing for pollutants, including microplastics, and strive to ensure the purity of their salt through quality control processes. However, as with all sea-sourced products, complete isolation from environmental pollutants is challenging. Consumers concerned about microplastics should research and select brands that prioritize environmental responsibility and product purity.
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Reducing microplastic exposure
While the health effects of microplastics are not yet fully understood, reducing exposure to them may be crucial for our health. Microplastics have been found in table salt, including Celtic salt, due to contamination during processing and packaging.
- Choose salt from non-plastic packaging: Salt packaged in plastic is more likely to be contaminated with microplastics. Opt for salt packaged in non-plastic materials, such as glass or paper.
- Buy high-quality salt: Contamination can also occur during the processing stage, so choosing a high-quality salt with minimal processing can help reduce the risk of microplastic exposure.
- Source salt from low-contamination areas: While no sea-sourced product can guarantee freedom from microplastics, choosing salt sourced from cleaner waters can reduce the risk of contamination. For example, Redmond's Real Salt sources its salt from an ancient salt deposit in Utah, which has lower levels of microplastics.
- Reduce plastic use: Microplastics are derived from the breakdown of plastics, so reducing your overall plastic use can help lower your exposure. This includes using reusable containers and bags, such as glass or stainless steel water bottles, and opting for reusable shopping bags instead of single-use plastic bags.
- Avoid heating food in plastic: Heating plastic containers or consuming hot liquids that have come into contact with plastic can increase microplastic contamination. It is recommended to use ceramic or glass containers for heating food in microwaves or ovens.
- Filtered tap water: Bottled water, even in glass bottles, can contain thousands of microplastic particles per litre. Opting for filtered tap water can help reduce microplastic exposure, as long as the water filter is not made of plastic.
- Vote and advocate for change: Individual actions are important, but systemic change is also necessary to address the microplastic issue. Vote for governments that prioritize environmental protection and hold them accountable for regulating chemicals and reducing plastic pollution. Advocate for broader environmental responsibility and support sustainable practices.
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Salt harvesting and microplastics
Salt is harvested from seawater or brine through a crystallization process. Seawater is trapped in estuaries at high tide and left to evaporate, or it is piped into lined beds and allowed to evaporate. As the water evaporates, it leaves behind salt crystals, which are then collected by salt farmers using wooden rakes. This process is used to produce salts such as Light Grey Celtic and Gourmet Kosher. Other salts, such as Makai Pure, are harvested from deep ocean currents in a greenhouse setting, while Flower of the Ocean is produced by skimming the crystals off the surface of the brine.
However, the presence of microplastics in salt has become an increasing concern for consumers. Microplastics are plastic particles smaller than 5mm in size and are considered global environmental pollutants. They can come from the breakdown of larger plastic pieces or the direct input of micro- and nano-sized particles used in various industries and products. Microplastics have been found in various human foods, including table salts, with one study detecting an average of 9.77 microplastic particles per kg of salt. Another study found that 94% of salt products tested worldwide contained microplastics, with an average of 140.2 microplastic particles per kg.
The occurrence of microplastics in saltwater is relatively well-studied, but their presence in commercial salts that are widely consumed is not well understood. While one brand of salt was found to be free of microplastics, others contained between 1 to 10 microplastics per kg of salt. The most common plastic polymers found in salt are polypropylene and polyethylene, which can have adverse effects on human health.
Celtic Salt producers are aware of environmental concerns, including microplastics, and employ methods to ensure the purity of their salt. They conduct third-party testing for pollutants, including microplastics, and implement quality control processes to minimize contamination. However, as with all sea-sourced products, complete isolation from environmental pollutants can be challenging. Consumers concerned about microplastics can research and choose brands that prioritize environmental responsibility and product purity, reducing the risk of exposure.
To reduce exposure to microplastics, it is recommended to purchase high-quality salts with non-plastic packaging. Redmond's Real Salt, sourced from an ancient salt deposit in Utah, and Jacobson Salt Co., sourced from the Oregon Coast, are recommended brands with lower levels of microplastics.
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Health implications of microplastics
Microplastics are a typical emerging pollutant, and their potential health hazards have been a significant concern. They are usually produced intentionally or generated when large synthetic polymer products, such as plastic packaging, are not properly disposed of or treated. Humans are exposed to microplastics through oral intake, inhalation, and skin contact.
Microplastics have been detected in environmental and human samples, and their toxic effects have been observed in experimental models like cells, organoids, and animals. These adverse effects include oxidative stress, DNA damage, organ dysfunction, metabolic disorder, immune response, neurotoxicity, and reproductive and developmental toxicity. Epidemiological evidence also suggests a correlation between microplastics exposure and various chronic diseases.
The specific health risks associated with microplastics depend on their type, size, shape, and concentration. While most researchers agree that current levels of microplastics in the environment are not sufficient to impact human health significantly, plastic waste is projected to nearly double by 2040, increasing the likelihood of contamination in sea products like table salt.
Celtic Salt is aware of environmental concerns, including microplastics, and employs methods to ensure the purity of their salt. They conduct annual third-party testing for pollutants, including microplastics. However, as with all sea-sourced products, complete isolation from environmental pollutants is challenging. Consumers concerned about microplastics can research and choose brands that prioritize environmental responsibility and product purity, opting for salt from cleaner waters and responsible producers.
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Frequently asked questions
Microplastics have been found in various types of sea salt, including Celtic Sea Salt. Microplastics are small particles of plastic that are less than 5mm in size, and they can enter the oceans through the breakdown of larger plastic items, the release of microfibers from synthetic clothing, and the dumping of plastic waste.
While it is difficult to completely avoid consuming microplastics in sea-sourced products like Celtic salt, you can take steps to reduce your exposure. Look for brands that prioritize environmental responsibility and product purity, and choose products from cleaner waters and responsible producers. Additionally, opt for salts with non-plastic packaging and avoid anti-caking agents or other added chemicals.
Microplastics contain chemicals that can be detrimental to human health, although the specific health risks associated with consuming microplastics in sea salt are not yet fully understood. Reducing your overall exposure to plastic and supporting sustainable practices can help minimize potential risks.
Reputable Celtic salt companies, such as Celtic Sea Salt®, conduct third-party testing for pollutants, including microplastics. Look for companies that are transparent about their testing practices and choose products that prioritize purity and environmental responsibility.
Redmond's Real Salt and Jacobson Salt Co. are two brands mentioned in a blog post by Amos Institute as having lower levels of microplastics. Redmond's Real Salt sources their salt from an ancient deposit in Utah, which has not been exposed to the ocean. Jacobson Salt Co. sources their salt from the Oregon Coast and claims to filter out microplastic particles.
