What's Happening Underground While the Harvest Goes On Above

While the harvest happens above, it's happening below too.

It's easy to picture the harvest as something that only happens among the vines — cutting, loading, hauling. But for every basket that goes up onto the cart, there's a cellar waiting underground, and during these weeks that cellar keeps its own rhythm, different from the vineyard's, just as demanding, and nearly invisible to anyone who doesn't go down to see it.

The grapes come in, and the pause is over

The moment the first trailer arrives from the vineyard, a race begins in the cellar that lasts, with luck, until November.

The grapes are destemmed — separating the berries from the stem, the woody part of the cluster that would add harsh, green tannins if left in — and crushed just enough to break the skin without crushing the seed, which would turn the must bitter. All of this, in a Valdevimbre family cellar, is done with the same care the grapes were picked with: watching the fruit, not a control panel.

What comes out of that first step goes down into the vats, and that's where the part of the harvest that truly never rests begins: fermentation.

Punching down, or how you watch over a wine that isn't one yet

During fermentation, the grape skins rise to the surface of the must and form the cap — a thick layer that, left alone, dries out, picks up airborne bacteria, and ruins the color and aromas being extracted. Preventing that is daily work, sometimes several times a day: punching down, drawing must from the bottom of the vat and pouring it back over the top, soaking the cap again and again.

In a small cellar this is still done by hand, with buckets, climbing stone steps up and down in a cave barely wide enough for one person to stand. It's not a symbolic gesture. It's what decides whether the wine, weeks from now, has color and structure, or comes out pale and flat.

On top of that comes constant watch over each vat's temperature — a fermentation that runs too fast and too hot loses aromas and risks volatile acidity; too slow and cold, it can stall before it's done. How the cave itself helps with that balance, without spending a watt of electricity, is something we've written about separately.

A place that smells different for six weeks

Anyone who steps into a Valdevimbre underground cellar in October notices the smell before anything else: must in full fermentation, sweet and faintly sour at once, mixed with the cold damp of the clay. Nothing like the quiet, almost neutral smell the same cave carries in April.

These weeks are also the year's busiest inside a cellar that spends the rest of its months in near-total stillness — the same stillness that, come winter, lets dust settle slowly onto bottles that have already finished their work. Empty vats get cleaned and readied for the next load of grapes, must density gets checked to track how much sugar is left to turn into alcohol, and, taste by taste, someone decides when each tank is ready for the next step.

The work no one sees from outside

No one visiting Valdevimbre in September and looking at an emptied-out row of vines necessarily pictures what's happening a few meters below their feet at that exact moment: a family hauling buckets, watching a temperature, smelling a must to know if it's going well.

It's perhaps the least photographed part of the harvest, and the one that decides most how the wine will taste a year from now. The vineyard gives the grapes the land allows. The cellar, these weeks, decides what's done with them.

If you visit us during harvest, you'll likely catch that smell of must the moment you walk down the first steps. Ask about it. It's, quite literally, the wine happening.