(1) Except as otherwise provided in this section, it shall be unlawful for any brewer or manufacturer or distributor or wholesale dealer of or in light wines and/or beer to manufacture or knowingly bring upon his premises or keep thereon any wine of an alcoholic content of more than five percent (5%) by weight and beer of an alcoholic content of more than eight percent (8%) by weight, or any distilled spirits of any alcoholic content whatsoever. Any person that shall add to or mix with any beer or light wine any alcoholic or other liquid, or any alcohol cube or cubes, or any other ingredient or ingredients that will increase or tend to increase the alcoholic content of such liquor, or any person that shall knowingly offer for sale any liquor so treated, shall be guilty of a misdemeanor and punished as hereinafter provided in this chapter. The commissioner shall take any action he considers necessary to ensure that light wine and/or beer manufactured at a brewpub complies with the provisions of this section.
(2) A brewer or manufacturer of light wine or beer may manufacture and keep upon his premises beer of an alcoholic content of more than eight percent (8%) by weight if the beer is manufactured for legal sale in another state.