Italian wine maker Gancia, which is majority-owned by Russian Standard, is to up the alcohol content on two of its vermouths to 16%.

Gancia said the new formula brings Gancia Bianco and Gancia Rosso in line with its original vermouth recipe, which dates from the mid-19th century. The vermouths were previously 14.8% abv.

Gancia said it conducted two years of research into the change and claims it “enhances the aromatic tones of vermouth”. The company is also launching a packaging overhaul for its vermouth range, which includes Gancia Extra Dry.

Russian Standard acquired its stake in Gancia in December 2011.