The 2018 Montes Alpha M is a proprietary blend from the Colchagua Valley in Chile, brought to life by the acclaimed producer Montes. This red wine features a blend of 80% Cabernet Sauvignon, 10% Cabernet Franc, 5% Merlot, and 5% Petit Verdot, all aged in French barrels, with 80% of those being new. It has an alcohol content of 14.5% and is sealed with a cork closure.

The wine has garnered high praise from multiple professional reviewers. Decanter awarded it a remarkable score of 96, noting that "2018 was another superb year for this Cabernet Sauvignon," and commending its "sophisticated expression of blackberry, cherry, blackcurrant, graphite and oak alongside good structure, fine, juicy tannins and a finish of blackcurrant jam."

James Suckling also rated the wine 96, describing it as having "black fruit, dried herbs, spices and earthy undertones" with "hints of bark and cedar." He emphasized its "full body with firm tannins that are fleshy in texture and provide excellent structure," and advised that it "needs time to come together and mellow a bit," suggesting to "try after 2024."

Vinous' Joaquin Hidalgo gave the wine a slightly lower but still impressive score of 93. He highlighted the "cigar box aromas alongside black currant, cassis, mint and hints of camphor," attributing these complexities to the time spent in the barrel. He described the wine as "complex" with "firm, polished tannins that keep the powerful mouthfeel in check," and praised its "expressive and long-lasting" nature.

Wine Spectator rated it 95, labeling it as "refined and powerful," with "juicy richness to the raspberry tart, red plum and red currant flavors that are backed by vibrant acidity and tannins." The reviewer noted its "creamy finish" which is "fine-textured, lingering with mineral and spice." They also mentioned that 4,000 cases were made, with 550 cases imported, and recommended drinking it now through 2027.

Overall, the 2018 Montes Alpha M is a highly-regarded wine that showcases a harmonious blend of flavors and textures, making it a notable addition to any wine enthusiast's collection.