Carbonate and flavor tap water for great homemade soda. The systems, available at Costco, Macy’s and Target, are a smart investment if seltzer or bubbly drinks are regular supermarket purchases. It ...

Add the pit(s) to a quart jar, along with the sugar, enough water to fill the jar, and the culture starter if desired. Ferment with permeable lid for 2 to 3 days, or until bubbles form at the surface ...

Ben Biller was tired of store-bought soda. As he saw it, when brand-name companies injected carbon dioxide into their products, the drinks stopped being natural. So about a year ago, Biller decided to ...