Nearly Caffeine-Free Coffee to Arrive in 20 Months

If you’ve ever craved a post-midnight cup of coffee but dreaded the sleepless consequences, help might be on the way. Scientists have developed a genetically altered coffee plant that produces beans containing almost no caffeine—meaning you could enjoy a brew at any hour without worrying about staying awake.

According to John Stiles, a researcher at the University of Hawaii at Manoa, this nearly caffeine-free coffee could be ready for tasting in roughly 20 months. Lab-grown and currently undergoing field trials, the plant yields beans with just 3% of the caffeine found in regular coffee.

What Makes This Coffee Different?

This isn’t your usual decaf processed through chemical baths or CO₂ extraction. Instead, it’s a genetically modified coffee plant, bred to produce minimal caffeine naturally. Researchers identified a gene critical to caffeine formation and effectively “turned it off” using a technique involving antisense genes—segments of DNA inserted to block the gene’s function.

How Did They Reduce the Caffeine?

Stiles and his team discovered the gene responsible for early caffeine production in coffee plants. By switching off that gene and inserting an antisense gene—a mirrored DNA sequence—they disrupted the plant’s ability to produce normal levels of caffeine. As a result, the coffee plants they’ve developed now generate beans with just 3% of the caffeine typically found in standard coffee varieties.

The caffeine reduction occurs not just in the beans, but across the entire plant. However, the stimulant still tends to concentrate in the beans themselves, which is why they remain the focus for decaffeination efforts.

Why Go Genetically Modified?

Traditional decaffeination methods often strip away not just caffeine, but also some of the aromatic compounds that contribute to coffee’s flavor and aroma. A genetically modified coffee plant that grows with little to no caffeine from the start could offer a purer, more flavorful cup without the need for post-harvest chemical processing.

What’s the Current Caffeine Level?

The coffee beans grown from this modified plant currently contain only 3% of the caffeine found in a normal coffee bean. That’s a significant drop that could make late-night coffee drinking far less disruptive to sleep.

Where Is the Research Now?

Stiles’ team first identified and manipulated the gene in the lab using tissue cultures. In the current phase, they’re growing these modified plants in a greenhouse setting. If all goes as planned, the first tasting of coffee from these plants could happen within 20 months.

Frequently Asked Questions

How much caffeine is in the new coffee beans?

The genetically modified coffee beans contain just 3% of the caffeine found in regular coffee beans. This extremely low level means you can drink coffee much later in the day without risking sleep disruption.

Is this coffee naturally decaffeinated?

While not decaffeinated in the traditional sense (like through chemical or CO₂ processes), the coffee is naturally low in caffeine due to genetic modification. Scientists altered the plant’s DNA to suppress caffeine production.

How did researchers reduce caffeine in the coffee plant?

Researchers identified a key gene involved in early caffeine production, then used an antisense gene to block its function. This genetic modification reduced the plant’s ability to produce caffeine, resulting in beans with only 3% of normal caffeine levels.

When will this coffee be available to try?

According to researcher John Stiles, the first tasting of coffee from these modified plants is expected in approximately 20 months, once greenhouse trials are further along.

Will this coffee taste different?

The article does not comment on flavor differences, but because the caffeine is reduced at the genetic level rather than removed after roasting, it may retain more of the coffee’s natural aromas compared to conventional decaf methods.

Is this a GMO coffee plant?

Yes, the coffee plant has been genetically modified by altering its DNA to suppress the production of caffeine, making it a genetically modified organism (GMO).

Recommended Low-Caffeine Single Origins from FrontStreet Coffee

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