Dawn, in the agave fields. The story of a tequila cask begins before sunrise, in a field planted the better part of a decade ago.

Dawn, in The Agave Fields
The story of a tequila cask begins before sunrise, in a field planted the better part of a decade ago.
In the hills around the town of Tequila, in Jalisco, Blue Weber agave stand in long rows that run to the foot of the volcano. Each plant has spent six to eight years storing sugar in its heart. Now a jimador, one of the skilled harvesters who judge when each plant is ripe, walks the row with a coa, a flat round blade on a long handle, and strips away the spiked leaves one by one.
What is left is the piña, the plant’s heart. This looks like a giant pineapple: pale, heavy and ready. Many distilleries grow their own agave here, inside the tequila Denomination of Origin, the protected region of Mexico where tequila can legally be made. By evening the piñas are on their way to the ovens. Three years from now, some of them will be extra añejo.
Fire, Copper and Oak
At the distillery, the piñas are cooked slowly until their starches turn to sugar. They are crushed, the sweet juice is fermented into a low-strength “wash”, and the wash goes through the stills. By law, tequila must be distilled at least twice.
What runs clear from the second distillation is blanco, unaged tequila: bright, peppery and full of cooked agave. Most tequila goes straight into a bottle at this point. Some of it is sent somewhere else: Oak
A typical cask is filled with 200 litres of blanco at 55% ABV (alcohol by volume), stronger than the 40% it will eventually be bottled at, sealed and rolled into the warehouse. For a long time, nothing much will seem to happen. In fact, everything is about to.
The First Year: Reposado, Añejo and The Angels Share
Oak breathes. As the Jalisco days heat up and the nights cool, the cask draws spirit into the wood and lets a little escape as vapour. Distillers call what is lost the angel’s share, and in this heat the angels are thirsty. Distillers in Jalisco often plan on losing around 5% a year.
Two months in, the spirit earns its first new name. By law it is now reposado, “rested”: still bright with agave, with the first warmth of the wood.
After a year it becomes añejo, “aged”. The colour has deepened from straw towards amber, and the edges have softened into vanilla, caramel and spice. The angels have taken their share, and the cask now holds about 190 litres.
It could be bottled now. It isn’t. The best part of the story is still two years away.
The Bottom of The Cycle
Outside the warehouse, the fields tell a different story: there is too much agave. Growers planted heavily during the boom, and because the plant takes years to mature, that wave is arriving all at once. Since 2024, the price of agave has fallen 92% a kilo, and some growers are leaving fields unharvested, where pests spread from farm to farm (CRT, via Mexico Business News).
This is how agave has always worked. Growers overplant when prices are high, a glut follows, they pull back, and a shortage follows that. IWSR, the drinks industry’s market analysts, puts the cycle at roughly 10 to 15 years from peak to peak (IWSR).
This time, the weather may have its say. El Niño is a periodic warming of the Pacific Ocean that shifts weather around the world. NOAA, the US weather and climate agency, puts the chance of a very strong El Niño this winter at more than 90%, and central and southern Mexico tend to turn drier when one arrives (FreshPlaza).
For anyone laying down casks, that makes this a buyer’s market. IWSR expected agave prices to reach the bottom of this cycle around 2026 (IWSR), so casks filled now are filled when their main ingredient is cheaper than it has been in years.
What comes next is less certain. Nobody knows what agave, or aged tequila, will cost in three years, once El Niño has passed and the cycle has had time to turn. What is certain is how casks filled today will spend those years: ageing, which is the one thing no harvest can hurry.
And The World Keeps Pouring
However the cycle turns, the world keeps reaching for tequila. Between 2020 and 2025, the value of tequila exports rose 8.5% a year, from US2.34billiontoUS3.51 billion. It is now sold in more than 120 countries, under 3,402 registered brands (Mexico Business News, citing SADER and the CRT).
Most of it crosses one border. The United States took 331.3 million litres in 2025, about 81.6% of everything exported, and its thirst held into 2026: exports in the first half rose 3.6%.
The rest of the world is catching up. Japan, the UK, Canada, Spain, Colombia, Italy, Australia, Germany and India are now among the biggest buyers. The Tequila Regulatory Council, the body that certifies every bottle of tequila, sees Japan and South Korea as the next frontiers, while China and India remain harder doors to open.
And drinkers are trading up. In tequila’s last downturn, from 2006 to 2010, premium-and-above agave spirits, the higher-priced end of the shelf, grew at 7% a year while standard brands grew at 2% (IWSR). When people reach for the best bottle on the shelf, they reach for aged tequila. At the very top sits extra añejo.
Year Three: Extra Añejo
Three years after the jimador’s blade, the cask crosses the last line. It is now extra añejo, the most premium category of tequila. There is no tier above it.
It is lighter than it started. Of the 200 litres filled, about 170 remain. Brought down with water to its bottling strength of 40%, that is around 333 bottles, each holding three summers of Jalisco heat.
That is what makes aged tequila prized, and why brands that want extra añejo have to plan years ahead. The casks they will bottle three years from now have to be filled today.
Whisky or Tequila: A Cask Buyer’s Comparison
If you have owned a whisky cask, much of this story will feel familiar: spirit laid down in oak, the angels taking their share, character built slowly by time. What changes is the clock, the climate and the market around the cask. Side by side, the two look like this:
