Adult soft drinks specialist Bottlegreen is attempting to boost its appeal with cash-strapped shoppers by increasing bottle sizes - but not prices.

The brand's single-serve, Sparkling Pressé range was previously sold in 250ml bottles but will now come in 275ml formats, sold at the same price of £1.40.

"The further we get into the economic downturn, the more frugal consumers will become," said MD Simon Speers.

"Demand for products that provide added value as well as the same quality as before will be even greater."

In the credit crunch, many companies were scaling back the size of their drinks offerings, said Speers, but too many were continuing to charge a premium in order to survive.

"We felt it was more important to retain existing customers while also attracting new ones," he said. "This meant providing a product offering both premium quality and value for money."

The move follows a 15.5% increase in sales to £10m in the year to December 2008, a rise that moves the brand closer to its targeted £20m in sales by 2012.

Successful relaunches of its fruit cordial and sparkling pressé ranges last year helped defy the wet summer and credit crunch, Speers said.

"One of our key goals last year was to tackle low brand awareness among consumers and looking at these results it seems that our relaunches have proved extremely successful."

The company planned a series of new product launches that would take the brand into different sectors of the soft drinks market this year, he added.