Should We Be Afraid of Mezcal? Truth About Agave Spirits

To many, mezcal is tequila’s rotgut cousin, a wild, unregulated spirit from the “Wild West” of Mexican distilling, harsh enough to strip paint and super smoky like an ashtray. To others, mezcal is one of the most complex, desirable, and sippable liquors in existence. Of course, there are mass-market and cheap mezcals that deserve to be called low-priced swill, but this does not define mezcal. Nor does the lingering fear of unpredictable, campfire-in-a-bottle flavors mean you should shy away from it. In fact, if you’re wondering whether to pick up a bottle, asking the difference between mezcal and tequila is a trick question. You see, there is no fundamental divide where one ends and the other begins: Tequila is mezcal.

Understanding why tequila feels like a safe, predictable corporate standard while mezcal feels like an adventurous gamble comes down to history, production methods, and modern marketing. Once we pull back the curtain on how both are made, you’ll realize that the fears about mezcal being an unregulated threat are largely undefounded, and that, most of all, these fears are holding you back from a world of flavor that you simply can’t get from tequila.

Agave roasting at Mezcal Distillery in Oaxaca, Mexico — Mezcal Distillery in Oaxaca, Mexico

What Is Mezcal? (And Why All Tequila Is Mezcal)

To understand why tequila is a type of mezcal, you have to look back at the origins of Mexican distillation. Long before the Spanish arrived in the Americas, indigenous peoples fermented the sweet sap of the agave plant into a cloudy, low-alcohol beverage called pulque.

When 16th-century Spanish colonizers arrived and ran out of European brandy, they applied traditional European distillation techniques to fermented agave. The resulting distilled spirit was called mezcal, derived from the Nahuatl word mexcalli, meaning “oven-cooked agave.”

Historically, “mezcal” was simply the overarching word for any spirit distilled from baked agave anywhere in Mexico.

The Bourbon Analogy: Square vs. Rectangle

The easiest way to understand the relationship between tequila and mezcal is to look at American whiskey: All bourbon is whiskey, but not all whiskey is bourbon.

Mezcal is the broad, ancient family name for all distilled agave spirits.
Tequila is simply a specific, highly regulated regional subset of mezcal born in and around the town of Tequila in the state of Jalisco.

For centuries, tequila was actually known as Mezcal de Tequila (mezcal from the town of Tequila). As the producers in Jalisco industrialized, scaled up, and built a global export market in the late 19th and 20th centuries, they dropped the word “mezcal” from their bottles entirely. They rebranded their product simply as Tequila to differentiate their factory-made spirit from the traditional, small-batch mezcals produced throughout the rest of Mexico.

By the time regulations caught up in the mid-20th century, the separation was complete: Tequila was defined as a distinct legal category made exclusively from one specific plant in specific regions, while Mezcal remained the broader category encompassing dozens of agave varieties and traditional cooking methods.

Earthen Pits vs. Industrial Steam: Is Mezcal “Unregulated” Rotgut?

If you’ve ever hesitated to buy mezcal, it’s likely because of how it’s made. While tequila is produced in modern factories using stainless steel vats and steam autoclaves, traditional mezcal is cooked in giant, underground earthen pits lined with lava rock, wood, and soil. To the uninitiated, this can sound less like commercial distilling and more like an unregulated, backyard operation. It’s easy to wonder: Is this stuff safe, or am I buying liquid smoke from a bootlegger?

The truth is that traditional mezcal distillation isn’t about a lack of standards. While it is ancient distilling art, it’s also strictly governed.

The Flavor Myth: Fire and Underground Pits

When agave piñas (the heart of the plant) are buried underground and slow-roasted over burning wood for days, they absorb the charcoal, earth, and smoke of the pit. This is where mezcal gets its distinctive flavor.

In a poorly made, mass-produced mezcal, this smoke can feel harsh, heavy, and overbearing, like drinking an ashtray. But in a properly crafted bottle, the smoke is merely a frame. It sits in the background, allowing bright, sweet, floral, and herbal notes of the agave to shine through. No distilled spirit should every be so smokey you can’t taste anything else except the acrid bitterness of an ashtray. This is always a mark of low quality, whether, mescal, Scotch, or other liquor.

Tequila, on the other hand, doesn’t tend to be smoky. It skips the wood-fired pit entirely. Tequileros steam their agave above ground in brick ovens or high-pressure steel autoclaves. This produces a clean, bright, and highly predictable spirit, and strips away the smoky, earthy complexity that makes mezcal unique.

A Note on “Smoky” Tequila: While traditional tequila is steamed rather than pit-roasted, you may occasionally run into a bottle labeled as “smoky” tequila.

Traditional Pit-Fired Tequila: A small handful of artisanal producers occasionally use wood-fired earthen pits to roast Blue Weber agave, creating a spirit that bridges the gap between traditional tequila and mezcal.
Liquid Smoke and Additives: More commonly, mass-market “smoky” tequilas achieve that profile through added smoke flavorings, caramel, or heavy oak extracts. While not necessarily unpalatable, artificial smoke is often used by industrial producers to mask a lack of agave maturity or cover up harsh, low-quality distillation.

If you want authentic, wood-fired smoke, stick to certified Artisanal Mezcal, or check the tequila bottle carefully to ensure it isn’t relying on additive tricks.

The Safety Myth: Small-Batch vs. Unregulated

The idea that mezcal is an unregulated “Wild West” spirit is a total misconception. While mezcal production is deeply traditional and often carried out by family-run palenqueros (mezcal makers), it is strictly regulated under Mexico’s official Denomination of Origin (DO) standards and overseen by regulatory bodies like COMERCAM (Consejo Regulador del Mezcal).

When you buy a bottle of certified mezcal, you aren’t taking a gamble on moonshine. In fact, official mezcal regulations divide the spirit into three distinct categories based on production methods:

Industrial Mezcal: Uses modern steam ovens, column stills, and industrial machinery similar to big-brand tequila.
Artisanal Mezcal: Uses traditional pit-roasting, stone wheel (tahona) or hand-crushing, and copper or wood distillation.
Ancestral Mezcal: The most authentic, ancient method: pit-roasted, hand-mushed with wooden mallets, and distilled directly in clay pots (alambiques de barro) with bamboo tubing.

Far from being “cheap swill,” Artisanal and Ancestral mezcals represent some of the most meticulously crafted, small-batch spirits in the world. Rather than fearing the pit-roasting process, look for those designations on the label! They are how you can be sure of the mescal’s authentic quality.

Blue Agave vs. Wild Species: How Tequila “Went Big”

A major reason tequila feels like a polished, safe standard and mezcal feels like an unpredictable wild card comes down to a single plant and a century of aggressive industrialization.

A bottle of premium tequila will proudly declare itself 100% Blue Agave (Agave tequilana Weber). Over decades of marketing, consumers were taught to believe that Blue Agave is the superior, gold-standard plant for spirit making. If you take away anything from this article, take this: The blue agave claim is pure marketing poppycock.

The Monoculture Myth

Mezcal can be made from 20 to 40 different varieties of agave (estimates vary), including wild species like Espadín, Tobalá, Arroqueño, and Tepeztate. Some of these wild agaves take up to 15 to 25 years to mature in the harsh Mexican wilderness before they can be harvested.

So why did tequila lock itself down to just one plant? It wasn’t because Blue Agave makes a superior drink! It was about scale, speed, and competition. Blue Agave grows relatively fast (maturing in 6 to 7 years) and produces high concentrations of fermentable sugars. In the late 1800s, ambitious producers in the town of Tequila (tequileros) realized they could leverage steam technology to streamline production and meet growing regional demand. By adopting modern steam ovens and mechanized crushing, they achieved a level of uniformity and high-volume output that set them apart from the rustic, small-batch spirits crafted in other parts of Mexico.

As Tequila’s standardized, reliable profile gained widespread popularity, it became the most famous regional mezcal in the country, so famous that drinkers dropped the “mezcal” prefix entirely and simply called it tequila.

Politics, Protection, and Predictability

As tequila producers expanded and their exports grew, they became worried about knockoff products produced outside the region, including in Europe.

To protect their market share, tequileros appealed to the Mexican government to establish strict standards. By 1949, official regulations declared that tequila could only be made from Blue Agave. In 1974, Tequila was granted a formal Denomination of Origin (DO), restricting its production to Jalisco and limited parts of four other states. Through marketing and politics, tequila became Mexico’s uniform, national spirit. This never had anything to do with the superiority of blue agave or the methods used to make tequila. It was only about protecting the tequila industry from imitators.

Mezcal finally received its own Denomination of Origin in 1994. Fortunately, this DO did not regulate mezcal into a factory product. Instead, it protected the wild biodiversity of Mexico’s countryside.

Why You Shouldn’t Fear the Agave Variety

That uniform Blue Agave stamp on a tequila bottle can be reassuring. It makes us feel like we know exactly what we’re getting and where it came from. Standing in front of a shelf of mezcal and seeing names like Espadín, Tobalá, or Ensamble (a blend of different agaves) can feel intimidating compared to tequila’s single-plant predictability. But in this case, variety is quite literally the spice that makes mezcal such a rewarding adventure:

Espadín: The most common cultivated agave in mezcal (accounting for ~85% of production). It is approachable, balanced, sweet, and the perfect entry-level bottle if you want to try mezcal without getting overwhelmed.
Tobalá / Arroqueño / Wild Varieties: Rarer, wild-harvested agaves that offer floral, herbal, earthy, and complex mineral profiles you can never get from industrial Blue Agave.

Tequila gives you consistency because every bottle relies on the exact same farmed crop. Mezcal gives you an entire botanical ecosystem and starting with a classic Espadín ensures you get a smooth, welcoming introduction.

The “Worm” and the Hangover: Myths, Urban Legends, and Additives

Few spirits carry as much baggage as mezcal when it comes to late-night urban legends. Beyond the fear of drinking “liquid campfire,” two persistent myths follow mezcal around: the legendary agave worm and the belief that mezcal produces a mysterious, bone-shattering hangover. Both myths stem from the same root, a basic misunderstanding of how pure agave spirits are distilled.

The Agave Worm Myth

The idea that every bottle of Mexican spirit comes with a drowned larva at the bottom is one of the most enduring marketing ploys in beverage history.

First, tequila never contains a worm. Under Mexican law (NOM), adding insects to a bottle labeled as Tequila is strictly illegal.

Second, the “worm” (actually the larva of a moth or butterfly that feeds on agave plants, known as gusano de maguey) was introduced to mezcal bottles in the mid-20th century primarily as a tourist gimmick. Lower-quality brands used it to play into cultural confusion and market cheap, unrefined spirits to unsuspecting drinkers.

Concerned about finding a larva at the bottom of your glass? Dispel the legend and see why high-end mezcal dropped the gimmick in my full investigation: The Origin of the Agave Worm Tequila Myth

The “Wild West” Hangover: Myth vs. Chemistry

Ask around, and someone will inevitably claim that mezcal contains “mysterious compounds” or wild impurities that lead to apocalyptic hangovers and unpredictable intoxication.

This type of anxiety is an urban legend that follows major alcohol categories around, just like the myths that absinthe causes hallucinations or that tequila makes people uniquely aggressive. Alcohol is ethanol. its physiological effects don’t change based on whether it was distilled in Jalisco or Oaxaca.

Where hangovers do come from in agave spirits is cheap production and added sugar:

Mixtos vs. 100% Agave: The legendary, head-splitting “tequila hangover” was actually caused by cheap mixtos; spirits where 49% of the alcohol comes from fermented sugarcane or corn syrup, packed with artificial caramel colorings and additives.
Pure Agave Distillation: Authentic, 100% agave mezcal (Artesanal or Ancestral) contains zero added sugars, zero grains, and zero artificial flavorings. Because it is distilled purely from agave fructans, a high-quality mezcal is actually one of the cleanest spirits you can drink.

If you drink too much of any 80-proof spirit, you will get a hangover. But the idea that artisanal mezcal contains mysterious, toxic impurities that will ruin your next morning is pure folklore. When you buy a bottle marked 100% Agave, you’re drinking a clean, unadulterated spirit.

Decoding the Label: How to Read a Mezcal Bottle

Trying to choose a bottle of mezcal can feel overwhelming. Unlike tequila, which relies on a few standardized categories, mezcal labels feature a dense array of Spanish terms, agave varieties, and production methods.

Unless you already know exactly what specific brand is worth trying, understanding these terms and learning how to read the bottle will make all the difference to insure you get an authentic, small-batch spirit rather than an industrial blend.

Here is what the terminology on a bottle actually tells you about what’s inside:

1. The Category: Artesanal vs. Ancestral

Modern Mexican regulations require certified mezcal to state its production category on the label. Look for either of these two designations:

Artesanal (Artisanal): Indicates the agave was pit-roasted, crushed using traditional methods (like a stone tahona wheel), and distilled in copper or wooden stills. This is the sweet spot for high quality and approachability.
Ancestral: The most traditional and labor-intensive method available. The agave is pit-roasted, crushed by hand with wooden mallets, and distilled in clay pots with bamboo tubing. These spirits are intensely complex, earthy, and mineral-driven.
Note: If a bottle simply says “Mezcal” without either designation, it is likely Industrial Mezcal, made using steam autoclaves and column stills similar to mass-market tequila.

2. The Agave Variety: Espadín as the Entry Point

Because mezcal isn’t restricted to a single plant species, the label will always tell you which agave was used:

Espadín: If you are new to mezcal, start here. Espadín is a cultivated agave that offers a balanced and gentle introduction with sweet agave notes and a light kiss of smoke.
Wild Agaves (Tobalá, Arroqueño, Tepeztate): These species grow wild and take up to two decades to mature. They yield fascinating, highly complex flavor profiles (ranging from floral and fruity to intense pepper and wet stone), but they also carry higher price points due to their rarity.
Ensamble: This means the master distiller co-fermented and distilled two or more different agave varieties together in a single batch, creating a custom house profile.

3. The Maker’s Mark: Maestro Mezcalero

On a bottle of industrial liquor, you rarely find a human name. On authentic mezcal, the label almost always credits the Maestro Mezcalero (the master distiller) alongside the specific village or state where it was produced (such as Oaxaca, Durango, or Guerrero).

Seeing a master distiller’s name and village on the label is proof of small-batch, artisanal pride. It means you’re drinking a spirit crafted by a specific family using regional heritage techniques, rather than a mass-blended corporate export.