The 2018 Leclerc-Briant Abyss Brut Zero is an intriguing Champagne blend from France, notable for its unique maturation process. This wine is composed equally of Pinot Noir, Pinot Meunier, and Chardonnay. It underwent an unconventional aging process at a depth of 60 meters underwater off the coast of Brittany for one year, which contributes to its distinctive taste profile.

Decanter awarded this wine a score of 94, describing it as "a soft and relaxed expression" with notes of "candied pear, red apple skin, smoked nuts, toffee and cooked lemons." The review highlights its exceptionally soft mousse, suggesting it gives "the impression of a still wine on the finish."

Robert Parker's Wine Advocate also rated the wine at 94, praising its "aromas of maritime notes, white fruits, spices, smoke, and herbs." The review emphasizes the wine's balance, describing it as "medium to full-bodied, tense and ethereal," with a "pinpoint mousse and a lovely gastronomic bitterness." It notes the wine's low dosage of one gram per liter, underscoring its Brut Zero style.

Vinous scored the wine slightly lower at 92 but still commended its qualities. The review describes the wine as having a nose that "opens gently with a hint of ume plum and slight smokiness, followed by juicy yellow apple." The body is described as "smooth and rounded with the ripe mellowness of 2018," with a "gentle phenolic edge" offering complexity.

Overall, the 2018 Leclerc-Briant Abyss Brut Zero is celebrated for its soft texture, balanced structure, and intriguing flavor profile, enhanced by its underwater aging. It is a unique offering in the Champagne category, appealing to those interested in innovative winemaking techniques.