What Is Micro-Lot Coffee?
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“Micro-lot” on a coffee bag sounds exclusive, and it usually is. So what is micro-lot coffee? It is a small batch of coffee that a producer deliberately keeps separate from the rest of the harvest, from picking through processing, export and roasting. It might come from one exceptional plot on a farm, one variety, or one experimental fermentation. Because it is never mixed with other coffee, it is fully traceable and tends to taste distinctive.
There is no official, industry-wide definition, though. Roasters use different size limits and quality thresholds, so it helps to know what the word can and cannot tell you.
Key takeaways
- A micro-lot is a small, separately handled portion of a farm’s or cooperative’s harvest.
- No official definition exists; one roaster’s guide uses under 50 bags of 60 kg, while others describe lots of just a few sacks.
- Micro-lots usually score high on the specialty scale, often 86 points and above.
- They cost more because of small volume, extra labor and premiums paid for quality.
In this article
- What is micro-lot coffee?
- Lot, micro-lot and nano-lot compared
- How a micro-lot is created
- A micro-lot in numbers
- Is micro-lot coffee worth it?
- FAQ
What is micro-lot coffee?
Most of the world’s coffee is blended at some stage. Washing stations and mills often combine cherries or beans from many farms in an area into large lots, which is efficient but erases the character of individual plots. A micro-lot does the opposite: the best or most interesting portion of a harvest is isolated and kept separate from start to finish.
Pact Coffee, a UK roaster, describes a micro-lot as a limited-run harvest that a grower deliberately isolates from the rest of the crop. Common reasons to create one:
- A plot with an outstanding microclimate, sometimes better than a plot just 50 meters away.
- A rare or high-value variety, such as Geisha.
- An experimental process, like extended fermentation or a special honey or natural process.
- A specific picking day or exceptionally ripe selection.
Lot, micro-lot and nano-lot compared
| Type | Typical size | Traceability | Usual quality |
|---|---|---|---|
| Commodity lot | Large, often many containers | Country or region | Below or around specialty |
| Single origin (regional or co-op) | Medium to large | Region, cooperative or estate | Specialty, often 80–86 points |
| Micro-lot | Small; under about 50 bags of 60 kg in one definition, sometimes only a few sacks | Farm, plot or process | Often 86+ points |
| Nano-lot | Even smaller, sometimes a few bags | A single plot or experiment | Often 90+ points |
German roaster 19grams uses the under-50-bag threshold and links micro-lots to cupping scores above 90, while Pact Coffee sets the bar at 86 points and mentions some micro-lots yielding only three or four sacks a year. Those differences are exactly why you should read the details on the bag rather than the label alone. For more on scores, see what is specialty coffee?
How a micro-lot is created
- Select. The producer identifies a plot, variety or picking that stands out, often after cupping previous harvests.
- Pick separately. Cherries from that selection are harvested on their own, usually at peak ripeness.
- Process separately. Fermentation and drying are done in dedicated tanks, beds or patios, often with closer monitoring. In one Honduran Geisha example Pact describes, cherries were floated for up to 15 minutes to remove defects and dried slowly on beds for 25 days.
- Keep it separate at the mill. The lot is hulled, sorted and bagged on its own, with its own lot code.
- Cup and sell. Buyers cup samples and bid or negotiate, often paying a premium.
- Roast with care. Roasters usually choose lighter profiles to highlight the lot’s character.
Processing choices shape micro-lot flavor heavily; see coffee processing methods and anaerobic coffee.
A micro-lot in numbers
How much coffee is a micro-lot, really? Here is a worked example using the 50-bag threshold and a typical roast weight loss of around 18% (actual loss varies with roast level).
| Step | Calculation | Result |
|---|---|---|
| Green coffee | 50 bags × 60 kg | 3,000 kg |
| After roasting (about 18% loss) | 3,000 × 0.82 | About 2,460 kg |
| Retail 12 oz (340 g) bags | 2,460 ÷ 0.34 | About 7,235 bags |
| A tiny 4-sack lot | 4 × 60 kg × 0.82 ÷ 0.34 | About 580 bags |
Spread across roasters and cafés around the world, a few hundred bags can sell out in days, which is part of why micro-lots feel so scarce.
Is micro-lot coffee worth it?
Why micro-lots cost more
- Extra labor for selective picking and separate processing.
- Small volumes that don’t benefit from economies of scale.
- Quality premiums paid to producers, sometimes far above market prices.
- Higher shipping and handling cost per kilo.
When it is worth it
- You brew black coffee by pour-over or other clean methods that show nuance.
- You enjoy comparing varieties, processes and farms.
- You want your money to reward exceptional work at a specific farm.
When it may not be
- You drink mostly milk drinks or dark roasts, where subtle differences fade.
- You want the same taste every day; micro-lots change with each harvest.
- You are new to specialty coffee; a well-sourced regional single origin teaches you a lot for less. Our guide to single origin vs blend can help.
How to spot a genuine micro-lot on a label
- A named producer and farm, not just a country or region.
- A specific variety and processing method.
- Harvest year or season, since micro-lots change every crop.
- Often a lot name or number, and sometimes the exact plot.
If a bag says micro-lot but gives none of these details, ask the roaster for them.
Traceable coffee for every day
Our single origins are traceable to their region and producers rather than sold as micro-lots, which keeps them consistent from bag to bag. Kenya Nyeri comes from Othaya with SL28 and SL34 varieties, Costa Rica Alajuela from micro farms growing Caturra and Catuai in volcanic loam, and Ethiopia Natural from smallholders in the Sidama zone. All are roasted 1–5 days before delivery. Browse Single Origins.
Micro-lot coffee FAQ
Is micro-lot the same as single origin?
Every micro-lot is single origin, but most single origins are not micro-lots. A single origin can come from a whole region or cooperative.
How small is a micro-lot?
There is no fixed rule. One definition uses under 50 bags of 60 kg; some lots are only a few sacks.
What is a nano-lot?
An even smaller lot, sometimes only a few bags, usually from a single plot or experiment.
Should I use micro-lot coffee for espresso?
You can, but light, delicate micro-lots often shine more in pour-over, where their nuance is easier to taste.
Sources
- Pact Coffee. What is a microlot? pactcoffee.com.
- 19grams. Plot, lot, micro lot, nano lot. 19grams.coffee.
Facts checked in October 2026.
Keep reading: How to read a coffee label · Coffee cupping · Single Origins