An interesting point about La Casera. I only drink it when is Spain and then I usually mix it with wine. I have noticed however that La Casera has changed in the past 25 years. It used to be naturally sweetened, and had a crisp refreshing taste (I have to plug the similarity to Sprite / 7-Up), I have noticed however that at some point about 7 years ago that La Casera is now partially sweetened with ARTIFICIAL SWEETENER!. All this perhaps in the interest of economics...Like my madrileno friend says "son todos ladrones". Too bad.
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Vamonos pa'Cadiz!