The 2021 Ridge Monte Bello, a proprietary blend from the Santa Cruz Mountains in California, has garnered significant praise from wine critics. This red wine, produced by Ridge, combines 64% Cabernet Sauvignon, 31% Merlot, and 5% Petit Verdot.

Jeb Dunnuck awarded this wine a score of 96, describing it as "beautifully balanced, seamless" and comparing it to the 2016 vintage. He noted a "riveting perfume of pure crème de cassis, sweet tobacco, lead pencil shavings, and violet-laced aromas and flavors." Dunnuck emphasized its medium to full body and predicted it will achieve full maturity in 7-8 years but will have a longevity of over 30 years.

James Suckling gave the wine a perfect score of 100, highlighting its "massively concentrated, taut, yet trim and medium-bodied" character. He noted flavors of "espresso, blackberry, black cherry, and vanilla bean," influenced by aging in 100% new oak, predominantly American. Suckling described it as one of California's most collectible cabs and advised that it will be best enjoyed from 2031 onwards.

Wine Spectator rated the 2021 Ridge Monte Bello at 95, calling it a "strapping, muscular Cabernet." The review detailed "mouthwatering notes of licorice snap, rye, and apple wood" and a "burly core of red and black currant paste flavors." The review also mentioned a "long, grippy cast iron accent" on the finish and suggested it is best enjoyed between 2028 and 2040.

Wine Enthusiast's Matt Kettmann gave the wine a 97, describing it as an "ageworthy classic." He noted focused aromas of "blackberry, toasted herb, and light caramel with a hint of cocoa dust." On the palate, Kettmann found it firm and leathery, with flavors of "berry, herb, pepper, clove, and pencil shavings." He recommended drinking it from now until 2045.

Robert Parker's Wine Advocate also rated the wine at 96, marking the start of a new era at Ridge under Trester Goetting and John Olney. Reviewer ML praised its assertive and polished nose with aromas of "cassis, dried tobacco, green peppercorn, mint, and figs." The palate was described as "suave and refined with electrifying energy and persistence," and the finish as sophisticated with "ripe black fruits and drying, layered stately tannins." The wine is expected to age well for decades.

Overall, the 2021 Ridge Monte Bello is a highly regarded wine with excellent reviews, praised for its balance, complexity, and potential for long-term aging.