I buy liquid syrups in the local Walmart, for about $5.
Fruit syrups, such as blackberry or blueberry are available online, but much more expensive. Local grocers may have such syrup.
Powdered flavors would certainly work as well.
answered 1 week, 4 days ago
I buy sodastream since this brand has been discontinued. Sodastream is a liquid.
Epfan, my son and I use regular drink flavor like the to go Pouches in powder from Kool Aid or Ice tea, etc, last time we use Crunch in powder (at any regular store) and it actually tasted like Orange Crunch. Add the flavor after you add the Co2 according to instruccions.
There are flavors made specifically for this purpose, and it's liquid, it comes in bottles and you add it measuring with the cap. It's like a syrup. You can buy it at walmart or amazon, bed bath beyond etc. There are different brands. But like I said you can use anything to flavor it, from real fruit to powder flavor cause the flavor is added later and is never in touch with the mechanism of the fizzini.