Healthier eating trends are sometimes cited for declining sales of carbonated soft drinks, but at least one juice maker believes the key to increased sales requires effervescence.

Lakeville-Middleboro, MA-based Ocean Spray Cranberries Inc. is rolling out four new sparkling juice drinks, the first carbonated blends in its history, according to a company spokesman. The products, which launched in February with a sample giveaway and couponing to Facebook fans, are 70 percent juice and 30 percent carbonated water.

The four varieties-regular and diet versions of cranberry and pomegranate blueberry-are packaged in 8.4-oz. cans, a choice dictated by the desire to offer the blends in a single-serve container, the company says. Most of Ocean Spray’s juices are filled in 64-oz. PET containers. The cans are sold in four-packs, with a $3.79 suggested retail price.

“We hope to provide the right mix of the bubbly refreshment consumers crave with the tasty goodness of Ocean Spray juices,” states Marketing Vice President Larry Martin.