(a) The establishment used for the preparation, manufacture and bottling of any beverage shall be adequately lighted and ventilated and all floors shall be constructed of cement, concrete or tile laid in cement, or other material impervious to water, and shall have sufficient pitch to insure drainage; walls and ceilings shall be constructed of a smooth material which is impervious to moisture and easily cleaned; doors, windows and other openings of any room in which beverages or the ingredients of such beverages are prepared shall, through the use of screens or other devices, prevent dust and insects in the filling room. All entrances and exits shall be equipped with automatic closing devices, and each room in such establishment shall have at least one approved device for the catching of flies. Sinks and toilets shall be provided for employees and no toilet shall open directly into any room used for the preparation or bottling of any beverage. Toilet doors shall be self-closing. The syrup room shall be separately enclosed, well ventilated and lighted, provided with sinks and taps for hot and cold water, thoroughly protected against vermin, flies, dirt and dust and so constructed as to be easily cleaned. Each such establishment shall adopt an adequate and efficient process for the automatic cleaning and sanitizing of all bottles in which any such beverage or water shall be placed for the purpose of sale. Cases and bottles shall be stored in such manner as not to interfere with the sanitation of the bottling room. No license shall be issued until the place where the applicant therefor proposes to conduct such business has been inspected by the commissioner or his agent and found to be in a clean and sanitary condition, and such place shall be inspected at least twice each year and at such other times as the commissioner considers necessary. The costs of standard potable water testing and analysis, included as a part of such inspections, shall be borne by the applicant.

(b) Any establishment which is not subject to the provisions of sections 21a-150 to 21a-150j, inclusive, shall take samples from each source of water used for any beverage which such establishment bottles for sale, at least annually. Qualified employees of such establishment or an approved commercial laboratory shall analyze such water for microbiological contaminants on a biweekly basis if the source is other than a public water supply, as defined in § 21a-150, and at least annually if the source is a public water supply. Such sampling and analyses shall be in addition to any sampling performed by government agencies. Records of such sampling and analyses shall be maintained on file at such establishment for not less than two years.