Iowa beverage manufacturers are embroiled in a legal battle with the state over a new law that restricts THC levels in adult beverages. The companies claim the state knowingly approved 12-ounce cans with up to 10 servings of THC each, contradicting the new law’s limits. Local media reported ten Iowa companies have filed a federal lawsuit to block the enforcement of the new hemp law, which restricts THC levels in consumables. The companies argue that House File 2605 and House File 2641, passed this year, are preempted by federal law. They allege that the new law needs to be more specific, leavi…