New containers only shall be used unless bottle washing equipment of the type used in carbonated beverage plants is used, making it possible to soak the bottles in a solution containing three and one-half per cent alkali, of which sixty per cent shall be caustic (sodium hydroxide), for a period of at least five minutes at 120°F. and then rinsed in potable water. New containers shall be rinsed with hot water.
Conn. Agencies Regs. § 21a-147-10