The factory's director was forced to apologize last year for "insulting Islam".
The apology was made after Kazakhstan’s Islamic clergy protested, saying such an inscription on alcoholic products is unthinkable in mainly Muslim Kazakhstan because of Islam's prohibition on drinking spirits.
The convicted three, who are 17, 18, and 19 years old, pleaded not guilty.
Their relatives told RFE/RL that the three teenagers had been framed by undercover security-service agents.
Some good jihadists in the making.