Laos Xam Tai Coffee: The Anaerobic Natural That Tastes Like Strawberry Jam on a Vanilla Wafer

Xam Tai is a district in Houaphanh province, northern Laos, where arabica was first planted in 1993 as a government program to replace opium. It produced nothing the specialty market could reach for two decades. It now produces a coffee that tastes like strawberry jam on a vanilla wafer, and we bought the small amount that existed.

Laos almost never appears in specialty coffee. When it does, it is from the Bolaven Plateau in the south, where the French planted coffee in the early 1900s. Roughly 5% of Lao coffee comes from the north, and Xam Tai sits inside that 5%.

This is the first Lao coffee we have offered. It is a single shipment, and there is no second lot behind it.

Where is Xam Tai?

Xam Tai is a district in Houaphanh province, in the northeast of Laos near the Vietnamese border. The terrain belongs to the Annamite Range: steep mountains, forest canopy, narrow fertile valleys. Arabica grows across the province at roughly 800 to 1,200 meters, maturing slowly under shade, which is the condition that builds complexity in the cup.

Xam Neua, the provincial capital, sits at about 1,000 meters and now has an airport. That detail matters more than it sounds. For most of the time coffee has grown in these mountains, moving a harvest out of them and in front of a buyer was the hard part. Growing it never was.

Why has nobody heard of northern Lao coffee?

Because for twenty years there was no route to market.

Arabica went into Houaphanh in 1993 as a cash crop, part of a state program to replace opium cultivation. The trees grew. The cherries ripened under jungle canopy. Almost none of it reached anyone who could judge whether it was good, because there were no wet mills, no dry mill, no cupping table and no exporter.

That began to change around 2015, when specialty buyers started working directly with farming families in the district and building processing capacity: wet mills in the villages, a central dry mill, a roastery in Xam Neua. Coffee that had been grown for two decades finally got processed in a way that let anyone taste what it actually was.

What they found was strawberry.

What does Xam Tai coffee taste like?

Strawberry jam on a vanilla wafer, first and loudest. Nougat sits behind it, rounding the cup out. Then rhubarb cuts across with a tart snap that resets your mouth and has you reaching for the next sip.

Here is the part worth knowing. We are not the only ones who taste it that way. Published cup notes from other roasters buying Xam Tai lots run to lemon, cocoa, strawberry and citrus, and at least one describes the profile as strawberry shortcake. When independent buyers working different lots from the same district keep arriving at strawberry, that is not a roaster's imagination. It is the district's signature.

We added nothing. No syrups, no flavoring, no oils. The sugar was already in the cherry.

Worth calibrating, because the tasting notes can oversell it: this is sweet for a coffee, not a sweetened drink. It still drinks like black coffee. What the fermentation does is bring forward sugars that were already in the fruit, so the cup lands round and fruit-forward instead of sharp. What you are getting is coffee without the bitter edge, not a sweetened drink.

What does the anaerobic natural process add?

These cherries were fermented in sealed tanks with the oxygen pulled out, then dried whole in the sun with the fruit still wrapped around the bean. Removing oxygen changes which microbes stay active during fermentation, and those microbes build aromatic compounds that washed coffees never develop. Drying the fruit on afterwards drives the remaining sugar inward instead of letting it escape.

It takes longer, spoils more easily and yields far less than standard processing. That is the whole reason anaerobic naturals stay rare and cost more than an equivalent washed lot.

If you want the chemistry in full, we have written it up in our guide to anaerobic fermentation and in anaerobic versus aerobic processing.

Why we will not roast it darker than medium

Everything interesting in this coffee came from fermentation, and fermentation-derived aromatics are fragile. Push the roast past medium and the sugars caramelize over the top of the fruit. The jam burns off and you are left with a competent dark roast that could have come from anywhere.

So it is medium, and it stays medium. There is no dark option on this lot and there will not be one. We have written separately on what roasting actually does to flavor.

The specs

Why there is no second lot

Laos almost never shows up in specialty coffee. Xam Tai almost never shows up in Laos. The volume that exists at this quality is measured in bags rather than containers, and we bought what there was.

When these run out, that is the end of it. Not a scarcity tactic, just how much coffee there was.

Shop the Laos Xam Tai Anaerobic Natural

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. This article is general information, not medical advice.