What will it cost me to make a bottle of soda?

After your initial purchase of a home soda maker package, you'll enjoy soda water in a reusable 1-liter PET bottle for just $0.20 per liter and flavored sodas for as little as $0.57 per liter, before any applicable shipping charges.

Penguin soda maker users will pay just $0.46 per liter of premium sparkling water and as little as $0.83 per liter of fresh gourmet soda. (The glass carafe holds about 2/3 of a liter.) When applicable and depending on location and order size, shipping adds $0.02 to $0.06 per liter.