On July 26, 2023, Japan MHLW issued an amendment to Specifications and Standards for Food Additives. According to the amendment, Japan added Calcium Phytate as a new designated additive, and revised the scope of application for another designated food additive named Cupric Sulfate. The changes came into effect immediately.
Calcium phytate：
As a new designated additive, it is required only be used in grape wine, and the usage amount shall not exceed 0.08g per 1 liter of grape wine. Correspondingly, the Food Labeling Standards has newly added the simplified name "phytic acid Ca" for labeling purposes.
Cupric sulfate:
As revealed by Specifications and Standards for Food Additives, cupric sulfate must not be used in any food other than infant formula. Moreover, infant formula prepared at a standard dilution level must not contain more than 0.60mg of copper per 1 liter, except when approved by the MHLW.
With the release of new amendment, cupric sulfate can also be used in grape wine with a maximum usage amount of 10mg per 1 liter of grape wine as cupric sulfate pentahydrate, and the residual amount of copper shall not exceed 2mg per 1 liter of grape wine.
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