Abstract
We performed a quality survey of the edible salt brands sold overseas by measuring both their major and minor components. Most brands of edible salt sold overseas contained sodium chloride of a purity level higher than that of the sodium chloride in edible salts produced in Japan. The minor components stemming from seawater and sand were also quantified. The results of the analysis of the edible salts sold overseas were found to follow a similar trend to those of the Japanese brands. Additives were incorporated into many of the brands sold overseas (70%), which is relatively unusual in Japan. Low-sodium salts were found to have different ratios of sodium chloride and potassium chloride from those found in salts sold in Japan. Overall, therefore, edible salts sold overseas were found to be purer than those sold in Japan, but used additives that were not incorporated into the Japanese brands.
