Licenses shall be issued by the department for the period of one (1) year, fees for which shall be prorated for the appropriate number of months until renewal, and shall expire on December thirty-first of each year issued, and may be revoked by the department after a hearing on ten (10) days’ notice to the licensee, if such licensee shall fail to comply with the provisions of this act. No such license shall be issued, and if issued may be revoked, in the following cases:
(1) If there shall be permitted to exist any other cause or thing calculated or tending to render the milk or cream, or any product thereof, used or produced in such manufacturing or processing operations, unclean, impure and unhealthy.
(2) If the licensee does not meet rules adopted by the department of agriculture for the processing of grade A and manufacturing grade milk and milk products.