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This website publishes administrative rules on their effective dates, as designated by the adopting state agencies, colleges, and universities.

Rule 3717-1-08.4 | Special requirements: acidified white rice preparation criteria.


A retail food establishment or food service operation that acidifies white rice for the purpose of rendering it a non-time/temperature controlled for safety food shall meet the applicable requirements of this chapter and shall have a HACCP plan that includes:

(A) A description of the products produced;

(B) A recipe for the production of the acidified rice that specifies:

(1) The water to rice ratio prior to cooking, and the cooking schedule;

(2) The vinegar solution recipe including salts and sugars;

(3) The cooked rice to vinegar solution ratio that is to be thoroughly mixed to acidify the rice;

(4) The cooked and acidified rice shall have a targeted pH of 4.1, not to exceed a pH of 4.3; and

(5) The vinegar solution shall be added to the rice within thirty minutes of cooking.

(C) The method used to determine the pH of the cooked, acidified rice that includes the following:

(1) Conducting the pH test within thirty minutes after acidification of the cooked rice and as often as necessary to assure a targeted pH of 4.1, not to exceed a pH of 4.3.

(2) Making a rice slurry by gathering a one-quarter cup sample of the cooked acidified rice taken from various locations in the batch and add three-quarter cup of distilled water in a clear plastic or metal blend cup.

(3) Blending the slurry for approximately twenty seconds to create a thorough mix.

(4) Inserting a pH probe into the liquid portion of the slurry to ensure a pH of 4.3 or less is achieved.

(5) Recording of measurements.

(D) Standard sanitary operation procedures that:

(1) Require the use of single-use gloves to prevent contacting the food with bare hands;

(2) Identify a designated work area that includes a dedicated sink and preparation table, and the method by which:

(a) Access to the processing equipment is restricted to responsible trained personnel familiar with the potential hazards of the operation; and

(b) Food-contact surfaces are cleaned and sanitized; or

(c) If it is necessary to share workspace and facilities, a schedule of operations, personnel traffic, product traffic, and cleaning that is planned to prevent cross contamination of ready-to-eat sushi products.

(E) A description of the training program that ensures that the individual responsible for the acidified rice operation understands the:

(1) Application of HACCP principles to the processing of acidified rice;

(2) Maintenance of pH records and the verification of procedures specified in this rule;

(3) Maintenance of equipment and facilities; and

(4) Procedures specified under this rule.

Last updated June 21, 2024 at 4:48 PM

Supplemental Information

Authorized By: 3717.04; 3717.05
Amplifies: 3717.04; 3717.05
Five Year Review Date: 1/28/2024
Prior Effective Dates: 3/1/2005, 3/1/2009