Last updated:
Italian Grape Ale is a category I came to skeptically, the idea of adding grape must or wine to beer sounded like a marketing gimmick. Then I tried a bottle of Birra del Borgo ReAle Extra with Montepulciano grape must and understood what the style is trying to do: the grape doesn’t make it taste like wine, it adds a tannic structure and fruit character that creates something genuinely hybrid. I’ve brewed four versions of this style now, experimenting with different grape varieties and must additions, and the results have been some of the most interesting beers I’ve made. Here’s what works.
Style parameters and what the grape contributes
Italian Grape Ale (IGA) is a recognized Italian craft beer category rather than a formal BJCP style. It combines a base beer (commonly a pale ale, amber ale, or saison base) with fresh grape must, grape juice, or wine grapes added during fermentation or secondary. The grape contribution varies by variety and form: white grape must (Moscato, Pinot Grigio, Vermentino) adds delicate floral and citrus notes; red grape must (Sangiovese, Nebbiolo, Montepulciano) adds tannic structure, dark fruit, and color. The beer base provides carbonation, body, and hop structure; the grape provides aroma complexity and fruit character that beer ingredients alone don’t produce. Typical grape addition: 10–30% of the fermentable volume as fresh must or 100% juice.
Base beer selection and grain bill
The base beer should be light enough not to overpower the grape addition. A Belgian Saison base (Pilsner malt 80%, wheat 15%, Vienna 5%) pairs well with white grape varieties, the Saison yeast esters and the grape aromatics complement each other. A pale ale base (2-row 85%, Munich 10%, Carapils 5%) works better with red grape additions that need more malt backbone. Keep the base grain bill simple and hop lightly (15–25 IBU with noble or floral varieties), aggressive hop character fights the grape rather than complementing it. Target base OG: 1.045–1.055 before the grape addition. The grape must adds fermentable sugar, so factor that into the final gravity calculation.
Grape addition timing and process
Fresh grape must sourced from a winemaking shop during harvest season (September–October) is the most authentic ingredient. Frozen must or 100% unfiltered grape juice (no preservatives, check the label) works year-round. Sulfite the must with potassium metabisulfite (50 ppm SO2) and wait 24 hours before adding to the fermenter to kill wild yeast and bacteria from the grape skin. Add the grape must to secondary after primary beer fermentation is complete, this preserves the fresh aromatic compounds that would be driven off during active fermentation. Alternatively, add sulfited must directly at pitch alongside the brewing yeast. Refermentation with the grape sugar takes 3–7 days. Cold crash and package as normal; the tannic compounds from red grape must settle out partially during cold crashing.
Common Questions
What grape varieties work best in Italian Grape Ale?
White grape varieties that work well: Muscat/Moscato (intensely floral, rose and apricot notes, pairs with Belgian Wit or Saison base), Pinot Grigio (crisp, neutral, good for keeping the beer-wine balance subtle), Gewürztraminer (spicy, lychee, intense, use in small quantities). Red grape varieties: Sangiovese (cherry, tomato leaf, medium tannin, classic Italian pairing with amber base), Montepulciano (dark fruit, earthy, moderate tannin, good in robust porter or amber base), Barbera (soft tannins, cherry, lower acidity than other reds, approachable for first attempts with red grapes). Avoid very tannic varieties (Cabernet Sauvignon, Nebbiolo in large quantities), heavy tannin makes the beer astringent and difficult to drink young. Start with 15–20% of fermentables as grape must for a first Italian Grape Ale; adjust up or down based on how prominent you want the grape character.
