If Citra is the crowd-pleaser of the hop world, Nelson Sauvin is the one that makes brewers talk about wine. Named after the Marlborough Sauvignon Blanc grape region it shares a terroir with, it carries a distinctive combination of gooseberry, dry tannic white wine, and punchy tropical fruit that no other hop variety quite replicates. Siren's Nelson Sauvin Sparkling Hopwater strips everything else away — no malt, no yeast, no fermentation — to let the hop express itself on its own terms. What you get is sparkling water that smells genuinely interesting: floral and fruity, with that characteristic white wine-grape quality coming through the fizz. It is an easier entry point into what Nelson Sauvin actually tastes like than most beers, where it is usually playing a supporting role. Zero alcohol, zero calories, zero sugar. Vegan and gluten free. At 0% it is genuinely zero in every direction, and it earns its place alongside the Citra version in the mixed case Siren sell. Worth trying if you're curious about hop flavour as a standalone thing rather than as part of a beer.