As a sommelier and brewer, I can confidently say that Moscato d'Asti tends to be sweeter than Prosecco. This is primarily due to the different grape varieties used in each wine.
Moscato d'Asti is made from the Muscat Blanc grape, which is known for its intense sweetness and aromatic qualities. The wine is typically low in alcohol, usually around 5-7%, which allows the natural sweetness of the grapes to shine through. When you pour a glass of Moscato d'Asti, you can expect to be greeted with a bouquet of green grapes, peach blossom, and sweet pears. The wine is incredibly refreshing and has a slight effervescence, which adds to its charm.
On the other hand, Prosecco is made from the Glera grape, which is generally less sweet than Muscat Blanc. Prosecco tends to have higher alcohol content, typically ranging from 11-12%. This higher alcohol level can give Prosecco a drier taste compared to Moscato d'Asti. However, it's important to note that Prosecco can also come in different sweetness levels, ranging from brut (very dry) to extra dry and even demi-sec (slightly sweet).
It's worth mentioning that there are also different styles of Prosecco, such as Prosecco Superiore and Prosecco Conegliano-Valdobbiadene, which can offer more complexity and varying levels of sweetness. These wines often have fruity and floral aromas with a crisp and lively character.
In my personal experience, I find Moscato d'Asti to be a delightful and indulgent wine, perfect for a warm summer afternoon or as a dessert wine. Its sweetness and aromatic profile make it a crowd-pleaser, especially for those who enjoy sweeter wines. Prosecco, on the other hand, is versatile and can be enjoyed on its own as an aperitif or paired with various dishes, thanks to its acidity and refreshing bubbles.
While Moscato d'Asti tends to be sweeter than Prosecco, it's important to consider that Prosecco can also come in different sweetness levels. Both wines have their unique characteristics and can be enjoyed in different occasions and settings.