GSM, which stands for Grenache, Syrah (Shiraz), and Mourvedre, is generally not considered a light wine. It falls into the category of medium- to heavy-bodied wines, known for their robust and full-bodied characteristics. However, it's important to note that the weight and body of a wine can vary depending on several factors such as the terroir, vineyard, vintage, and winemaker's style.
Grenache, one of the key components of GSM, is a grape varietal that tends to produce wines with a medium to full body. It is known for its juicy and fruity profile, often showcasing flavors of red berries, cherries, and sometimes even ripe plums. Grenache wines typically have low tannins, which contributes to their smooth and approachable nature.
Shiraz, also known as Syrah in some regions, brings a different dimension to the GSM blend. This grape variety adds spice, earthiness, and sometimes a hint of black pepper to the wine. Shiraz tends to have more tannins compared to Grenache, which can contribute to the overall weight and structure of the blend.
Mourvedre, the third component of GSM, is often described as adding depth and complexity to the blend. It brings darker fruit flavors such as blackberries and black cherries, as well as earthy and savory notes. Mourvedre tends to have higher tannins, which can further contribute to the weight and body of the wine.
It's worth mentioning that the GSM blend is not a strict formula, and the proportions of each grape varietal can vary from one producer to another. This flexibility allows winemakers to create unique expressions of GSM, each with its own characteristics and style. Some GSM blends may lean towards a slightly lighter profile, while others may be more intense and full-bodied.
Additionally, the terroir and the vineyard where the grapes are grown can have a significant impact on the final style of the wine. Different regions and climates produce grapes with varying ripeness levels, acidity, and tannin levels, all of which contribute to the overall weight and body of the wine.
In my personal experience as a sommelier, I have come across GSM blends that range from medium-bodied with vibrant fruit flavors to full-bodied wines with rich, intense characteristics. The beauty of GSM is its versatility and the ability of winemakers to showcase the unique qualities of each grape varietal while creating a harmonious blend.
While GSM is generally not considered a light wine, it's important to explore different producers and regions to find the style that suits your preferences. The best way to truly understand the weight and body of GSM is to taste a variety of expressions and appreciate the diversity within this blend.