Forming part of the company's £7 million annual spend on the brand, the push will be supported with limited-edition labelling featuring images from its Snowman TV ad s, and price promotions on all 33cl, 50cl and 2-litre packs.
The company is also introducing a new look to its 25cl bottle
which is available as a single bottle or in an 8-pack, and will be running a "scratch and win" on-pack promotion on 75cl bottles
tickets to the Christmas Carnival, held at the Scottish Exhibition & Conference Centre in Glasgow and sponsored by Irn-Bru.
Commercial director Jonathan Kemp said: "The total Irn-Bru brand has performed very well this year. Combined sales revenue for Irn-Bru and Diet Irn-Bru achieved a 2 per cent growth in the first six months despite the poor summer weather.
"Christmas is a key trading period for the industry and we have put an exciting programme of activity together to ensure that Irn-Bru continues to deliver phenomenal sales both nationally and in Scotland right through to Hogmanay and the New Year."