Denver ban on flavored nicotine products goes into effect as the new year kicks off The people who want to un ban flavored tobacco in Denver just submitted enough signatures to put it back on the ballot In what is being called one of the city's most expensive races on this year's ballot, Denver voters are leaning heavily toward keeping the city's ban on the sale of flavored tobacco, Denver Flavored Tobacco Denver Voters Could Overturn Flavored Vape Ban In Nov. Election Colorado Flavor Ban