It is a blank canvas for whatever kinds of flavors, essences, or alcohol you please ... to craft your own DIY hard seltzer at home. Take your favorite Polar seltzer like the pineapple pomelo ...

Demure, tropical and nostalgic are three vibes Polar Seltzer hopes thirsty customers will feel when sipping one of its five new seasonal flavors this summer. The Worcester-based beverage company ...

A cooler full of Polar seltzers in a variety of flavors sitting near a plant with pink flowers - Noam Galai/Getty Images ...