I was watching a rerun of Dr. Oz yesterday, which had a segment on kitchen gadgets. One of the products that caught my attention was the iSi Twist ‘n Sparkle beverage carbonation system. Instead of using a kitchen counter cluttering appliance like the SodaStream product that I reviewed 2yrs ago, it just uses an easy to store wand. The wand holds a small CO2 cartridge and attaches to the top of a bottle holding your favorite liquid. All you do is twist it on the bottle, where it will automatically release the CO2. Wait a minute and remove to enjoy your fizzy drink. Their website lists a bunch of drink recipe ideas. The Twist ‘n Sparkle is priced at $49.99, but can be found for less at Amazon.com and other online retailers. The single-use CO2 cartridges can also be found on Amazon.
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“Single Use CO2 cartridges” were already available for the common soda siphon, which we used to use. It came to about $1/L for soda, which was greater than the bulk price. We currently pay about $0.47/L with the SodaStream system (average — refill prices vary by who one can get them from).