G4 is a newish tequila brand masterminded by Felipe Camarena (brother of Carlos Camarena), designed with quality firmly in mind. G4 ? named for the four generations of Camarenas who've been making tequila in Jalisco ? uses only estate-grown, organic agave, and he relies on sustainable power and recycled materials whenever possible. The result is a pretty impressive blanco (we did not receive the reposado or anejo expressions for review) that tequila fans will want to check out. This unaged, silver expression kicks off with a nose of intense black and red pepper, pungent agave, and some lemon notes. There's a sharp, saline-like edge to it, positively screaming for use in a margarita. The palate initial hits the tongue with similar notes, pulling no punches with its peppery, herbal profile. The attack is sharp and impactful, though eventually some moderated sweetness emerges, settling down to showcase some fruity notes that tend toward a melon character. The finish pushes things in a different direction, finding a touch of bittersweet chocolate to temper the spice up front. The overall impact is one that's impressive, refreshing, and invigorating.

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