Ohio Rev. Code Ann. § 915.18 – Temperatures

(A) The refrigeration system for an establishment shall be equipped with accurate and reliable controls for the automatic maintenance of uniform temperatures as required in the various refrigerated rooms and shall be of adequate capacity to provide under extreme conditions of outside temperatures and under peak load conditions in the normal operations of the establishment, the following temperatures:
1. (1) In the chill room temperatures within two degrees of Fahrenheit plus or minus of thirty-eight degrees above zero Fahrenheit with a tolerance of ten degrees Fahrenheit for a reasonable time after fresh food is put in for chilling;
2. (2) In the sharp freezing room temperatures of ten degrees below zero Fahrenheit or lower or temperatures of zero degrees Fahrenheit or lower when forced air circulation is employed with a tolerance of ten degrees Fahrenheit for either type of installation for a reasonable time after fresh food is put in for freezing;
3. (3) In the locker room temperatures of not to exceed plus five degrees Fahrenheit with a tolerance of five degrees Fahrenheit higher;
(B) All establishments with the exception of those having a locker room only, shall have a chill room, and sharp-freezing facilities and facilities for cutting and wrapping or packaging food. This section does not prohibit such variations as may occur during short periods of time incidental to defrosting. For experimental purposes, the department of agriculture, upon application in writing, may authorize for a limited and prescribed period, the installation and use of refrigeration systems or methods which in the opinion of the department will result in improvement over present methods.