Instruction: Generate an answer to the question by utilizing the information contained in the document.

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Question: How much soda does each CO-2 cartridge make?
Document: Just got my SodaSparkle a couple of days ago, and have already used it multiple times. I am especially pleased with how quickly I works, and how much it produces. I go through a lot of soda, but this makes it certain I will never have to tote home those heavy 2-liter bottles again. One other comment - a previous viewer made a rude comment decrying the fact that Lychee flavoring comes with the SodaSparkle. So far, it is my favorite flavor.
The flavors come in little pouches , easy to use. No worry about putting the right amount of flavor in. I just have to make sure I have enough cartridges in house. I ordered a pack of 50 pieces , which will keep me in business for a while. They are not cheap ( about $0.50 per piece) but it makes me a big bottle of Sparkling water for much less than store bought bottles or quite a few flavored soda when I want it. Totally worth it for me.
I tried this as I drink a lot of seltzer and soda and got tired of all the recycling. How great to make my own soda - at home, when I want it, in my favorite flavors. And such a better deal than SodaStream! I am getting more for gifts for the holidays.
Amazing soda maker in extremely hot and humid summer. Kids just love it -- easy, fast to make and, most of all, healthy. We no longer have to worry about the sugar and calary contained in the carbonated drinks. Now, we just enjoy the happy time brought by the SodaSparkle in this scorching summer.
Finally decided on the Soda Sparkle after hemming and hawing over it vs other versions. I have a friend who has Sparkle and really likes it, so I chose this one. Really happy so far... We go through a lot of sparkling water in our house, often mixing it with juice to make "spritzers." So it's nice to have a continuous supply around without having to store the massive Costco supply in every corner of the kitchen (and shlepping it from the store).
IT TASTE BAD. I TRIED 2 AND HAD TO POUR OUT. I WOULD NOT RECCOMEND TO ANYONE. I WOULD LIKE TO RETURN
This is actually nice when you drink it with dinner as it doesn't fill you up as much. The other smaller bottle has stronger carbonation and I find it nicer to use with some of the flavors that came with the starter kit. Basically you put one of the metal cartridges that contain the CO2 in the top and screw it on the bottle. As you turn it , the carbonating starts and is actually over before you know it.
it's cool to make the stuff, really, but it's not cool to drink it.....the flavors they send with it are GROSS!!!! i suggest you add more flavors like regular cola or diet cola.....lychee as a flavor???? really???? cola lemon???? pineapple??? ?if the flavors were better i would have enjoyed it more......
We were looking for an alternative to the Sodastream, and settled on this one. With previous experience of the Sodastream, I have to say I am mostly happy with the Sodasparkle.Advantages:1. It does not take up valuable counter space2. The quality of carbonation is comparable to Sodastream.A few drawbacks knock one star off this review:1. Having to buy the (recyclable) one-shot gas canisters feels wasteful.2. The carbonation works best with chilled water, requiring a bit of foresight.
I was not impressed. I bought this as a gift for my wife and the little nod you turn on the side broke off the first time she used it. We tried all the flavors and they all taste flat. The little co2 canisters that come with it are one use only. So you will need a new one every time you make a liter.
Answer: a little more than one bottle