(a) Ozone (O3, CAS Reg. No. 10028-15-6) is an unstable blue gas with a pungent, characteristic odor, which occurs freely in nature, It is produced commercially by passing electrical discharges or ionizing radiation through air or oxygen.
(b) The ingredient must be of a purity suitable for its intended use in accordance with 170.30(h)(1) of this chapter.
(c) In accordance with 184.1(b)(2), the ingredient is used to treat food only within the following specific limitations:
|Category of food
||Maximum treatment level in food
|Bottled water that prior to ozonation meets the microbiological, physical, chemical, and radiological quality standards of 165.110 (b)(2) through (b)(5) of this chapter||Not to exceed current good manufacturing practice. Current good manufacturing practice results in a maximum residual level at the time of bottling of 0.4 milligram of ozone per liter of bottled water||Antimicrobial agent, 170.3 (o)(2) of this chapter.|