California produces some of the world’s best-known wine, but many of its grape growers now face a painful problem. They have more fruit than wineries want to buy. Falling wine consumption has created a severe wine grape oversupply crisis, leaving growers with unwanted crops, weak prices, and vineyards that no longer pay their way.

The numbers show how quickly the market has changed. U.S. wine case sales dropped from 427 million in 2020 to 329 million in 2025, a decline of 23%. Total wine spending also fell from $94 billion to $74 billion during that period.

California Has More Wine Grapes Than Buyers Need

HKN / Pexels / Wine’s consumer base has changed sharply in recent years. Baby boomers, long a major source of wine sales, are aging out of their peak drinking years.

Younger adults have not replaced that demand at the same rate. They also spread their spending across beer, spirits, cannabis products, and a growing range of nonalcoholic drinks.

This shift looks deeper than a temporary sales slump. Global wine consumption fell 2.7% in 2025 compared with the previous year and has dropped sharply from 2018 levels. California growers are now adjusting to a market where simply waiting for consumers to start buying more wine may not solve the underlying problem.

The oversupply has already changed California’s landscape. At the pandemic-era peak, the state had close to 600,000 acres of vineyards. Growers have since removed vines, stopped actively farming blocks, or pulled acreage out of wine grape production as demand weakened.

State agricultural estimates put current wine grape acreage at about 540,000 acres, down 12% in just two years. The 2026 WineBusiness Monthly Vineyard Survey found that 18% of respondents had permanently removed vineyard acreage during the previous year. Large producers reported especially aggressive reductions.

Yet removing vines only tells part of the story. In 2025, growers left roughly 820,000 tons of wine grapes unharvested, more than twice the previous record. Those grapes represented months of irrigation, pruning, disease control, labor, fuel, and other expenses that growers could not recover.

Falling Wine Sales Are Hitting Farms and Jobs

Jill / Pexels / Third-generation grower Bill Berryhill owns Berryhill Family Vineyards near the city in the San Joaquin Valley. He could not find buyers for grapes grown on 200 of his 500 acres and planned to remove another 50 acres after harvest.

Berryhill described the experience as “sickening” because growers can produce a strong vintage and still watch the fruit fall to the ground. That captures the strange economics of the current market. The crop itself may be healthy, but producing something valuable does not help when wineries already have more grapes and wine than they can sell.

Export trouble has added another problem. Canada had been the largest foreign market for California wine before Canadian provinces began boycotting American alcohol in 2025 in response to U.S. tariffs. U.S. wine exports totaled $805 million in 2025, down 35% from the previous year.

The boycott has reportedly erased about $360 million in revenue the U.S. wine industry might otherwise have earned. McManis Family Vineyards shows how hard that loss can hit individual producers. Canadian exports once accounted for 40% of the company’s export sales, but that share fell to just 5%.

Financial pressure now stretches across wineries, vineyards, and their workers. The 2026 Silicon Valley Bank wine industry report found that roughly half of California wineries were operating without a profit. The industry lost about $1.2 billion in revenue in 2025 compared with the previous year.

Large wine companies have responded with layoffs, closures, and spending cuts. Growers are also using fewer workers as they remove vines or reduce vineyard maintenance. California’s wine grape industry has likely lost several thousand vineyard jobs during the extended downturn.