The earlier harvest, driven by rising global temperatures and increasingly scorching summers, helps preserve the grape’s acidity but results in a high‑quality profile that is markedly different from the past. Here are the enological and production outcomes obtained by anticipating the harvest.
Enological results: how the wine changes
Preserved acidity:
Harvesting earlier prevents the degradation of malic acid. The wine retains freshness and longevity.
Lower alcohol levels:
The excessive accumulation of sugars in the berries is halted. This avoids heavy or overly alcoholic wines.
Fresher aromatic profiles:
Notes of fresh fruit, floral tones, and noble vegetal nuances dominate. However, aromas of ripe or jammy fruit are lost.
Less mature tannins:
In red wines, early harvesting can lead to greener, more astringent tannins. This requires gentler extraction techniques in the cellar.
Less intense colors:
The synthesis of anthocyanins (the pigments responsible for color) slows down under extreme heat. Red wines may therefore appear visually lighter.
Management and agronomic results
Protection from pathogens:
Harvesting before the arrival of autumn rains reduces the risk of downy mildew and botrytis attacks.
Water‑stress management:
It relieves the vine from the burden of ripening fruit during periods of prolonged drought.
Compressed logistics:
Harvest windows become narrower. Early‑ripening varieties (e.g., Chardonnay) and late‑ripening ones (e.g., Sangiovese) tend to mature almost simultaneously, creating overload in the winery.