With sales of flavoured water soaring, AG Barr has launched exclusive lines into Tesco under its Strathmore Twist brand.

Exclusive flavours raspberry & apple and orange & peach will roll out to 1,000 stores next month, alongside two existing flavours from the Strathmore Twist line-up - lemon & lime and strawberry & blackberry (rsp: £1.29/1.5l).

Volvic, meanwhile, has expanded its Touch of Fruit flavoured water with a cherry flavour and a limited-edition Coco-Pineapple. The Volvic Juiced range is also being expanded, with Strawberry and limited-edition Perfectly Peachy flavours.

Sales of still flavoured water are up 11% [Nielsen 52 w/e 8 Dec 2013].