Italian wineries face a storage crunch before the 2026 harvest.

Italian wineries are heading into the 2026 harvest with a growing storage problem, as tanks and cellars still hold large volumes of unsold wine from earlier vintages.

A new report from Italy’s Agriculture Ministry, issued through its food inspection body, the ICQRF, shows that wine stocks across the country were up 6.9% from a year earlier. The increase is raising concern in a sector that is now preparing to receive a new crop of grapes while much of last season’s wine remains in storage.

The issue is not limited to one region or one category. The ministry data point to a broad buildup that cuts across many of Italy’s best-known appellations and protected geographical indications. More than half of the wine currently in storage is classified as DOP, the category tied to protected designations of origin. Another quarter is IGP wine, which covers wines linked to a protected geographical indication.

That mix matters because it shows the pressure is not only affecting lower-priced, generic production. Some of the country’s most recognized names are also carrying heavy stocks, even as they continue to perform well in many export markets and attract regular media attention.

Prosecco stands out more than any other denomination. According to the ministry figures, about 300 million liters of Prosecco remain in tanks. That makes it the largest single stockholder among the DOP and IGP categories tracked in the report. The sparkling wine area accounts for just under 10% of all DOP and IGP wine still being held in storage.

Other denominations with high inventory levels include Chianti, with 120 million liters, equal to 3.6% of DOP and IGP stock; Montepulciano d’Abruzzo, with 110 million liters, or 3.3%; Sicilia, also with 110 million liters, or 3.2%; and delle Venezie, with 96 million liters, or 2.8%.

Among the IGP wines, Toscana and Puglia each account for 150 million liters, or 4.4% of DOP and IGP stock. Terre Siciliane follows with 110 million liters, representing 3.2%.

Those numbers are drawing attention because they arrive at a sensitive point in the production calendar. Wineries are about to bring in grapes for the new harvest, and tank space is one of the most basic requirements for turning fruit into wine. If too much older wine is still sitting in cellars, producers can be forced into difficult decisions on pricing, storage, timing of bottling, and the speed at which they try to move inventory into the market.

Italian food and wine publication Gambero Rosso said this week that storage capacity risks becoming even more saturated in the coming months. It warned that the situation could increase commercial pressure on producers and on regional bodies that oversee and support the sector.

WineNews.it, another national wine news outlet, drew a similar reading from the data. The publication said the overall picture of stock levels was worrying because pressure on wineries is rising just as the harvest gets underway.

The problem is especially relevant in Italy because the country’s wine system is deeply tied to regulated denominations, long aging programs in some categories, and a wide range of commercial channels at home and abroad. A buildup in storage can have different causes from one area to another. In some cases, slower sales may be the main factor. In others, producers may be holding wine longer while waiting for better prices or for market demand to improve. But whatever the reason, high carryover volumes can strain logistics and cash flow at a time when wineries are spending again on harvest labor, grape intake, fermentation, bottling, and transport.

The figures also suggest that strong brand visibility does not necessarily mean that stocks are moving quickly enough. Prosecco is one of Italy’s most widely recognized wine names, yet it now leads the country in stored volume by a wide margin. The same pattern appears in established still wine categories such as Chianti and Montepulciano d’Abruzzo, where the size of production and the importance of export markets can amplify the effect of even a modest slowdown in sales.

For regional authorities and consortia, the rise in inventories may increase pressure to support promotions, adjust production strategies, or consider how future vineyard output aligns with demand. For wineries, the more immediate concern is practical: where to put the next vintage, and how quickly older stock can be sold without further weakening prices.

The ICQRF report does not in itself explain why inventories rose 6.9% year over year, but the timing of the increase has made it a central issue ahead of harvest. In a business where space, timing, and market balance are closely linked, large carryover stocks can quickly become more than a warehouse problem. As grapes begin arriving at wineries across Italy, the amount of wine already sitting in tanks is likely to shape pricing and sales decisions throughout the next few months.