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When the water went into the bottle, it was flat, tasting like old tap water. When it came out of the water bottle, it sparkled. Not in that heavily carbonated, almost spicy, fresh can of seltzer kind of way, but a lighter chill, like that same can after you’ve been drinking it for 10 minutes. And here is the most interesting part: The transformation happened in the bottle, not in a big one countertop soda machine.
The Roam SodaTop is like a portable SodaStream. The head is where the magic happens. A tight seal and a small CO2 cartridge are the key elements to turning stagnant water into something more exciting. You can screw the top onto a Roam water bottle if sold, or into a compatible bottle (say, a HydroFlask).
Roam expects to start selling the SodaTop directly from their website in the first quarter of 2025, for $50. CO2 cartridges are expected to cost about 70 cents each.
Carbonation in hand
The process is simple. Insert a CO2 cartridge into the special lid of the SodaTop, release that carbon dioxide into the bottle, leave the excess gas inside and drink. Each cartridge is good for only one liter of water.
Roam says its stainless steel water bottles are designed to keep drinks cold for 24 hours. If you already have a SodaStream, Roam also has an adapter cap, which will sell for $13, that allows you to carbonate your drinks from your countertop machine.
The taste is in the air
The only thing you should carbonate in the bottle is the water, but that doesn’t mean you can’t add flavor. Flavored syrups or other drink mixes can be added after the CO2 is if you want something that tastes like, well, something. But Roam also develops its own ways to add variety.
CEO Sunjay Guleria said the company is working on flavored CO2 cartridges, which contain the essence of a flavor and allow you to make your own calorie-free sparkling water with just plain water and the cartridge. Imagine the flavors of ginger, lemon, yuzu, grapefruit or white peach – natural sparkling water or flavored sparkling water fresh in your bottle. It’s refreshing.
