REACTION reflects our philosophy - roasting coffee is all about the transformation of physical state and chemical composition of coffee.

Drip Bag Collection
Enjoy a 10% discount on any purchase upon 10 pcs Coffee Drip Bags;
Enjoy a 20% discount on any purchase upon 20 pcs Coffee Drip Bags.
*Promotional offer until 11/4/2025
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Drip Bag - Degree 180
Regular price HK$16.00Regular priceUnit price / per -
Drip Bag - Degree 220
Regular price HK$16.00Regular priceUnit price / per -
Drip Bag - COLOMBIA Finca La Fortuna Grape Infusion
Regular price HK$18.00Regular priceUnit price / per -
Drip Bag - YUNNAN Lan Chang Tian Hao
Regular price HK$16.00Regular priceUnit price / per
How's Reaction
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Modern
Choosing from our curated selection of single-origin and specialty coffees, or exploring our innovative house blends, coffee lovers can alwavs find a new reaction at REACTION Coffee Roasters.
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Reliable
Cuppings are our endless quality control of each batch to ensure the satisfaction of our coffee
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High Technology
LORING to enhance our
production in consistency
and energy conservation approach.

Single Origin - COLOMBIA Finca La Fortuna
Finca La Fortuna's Colombia coffee features a unique grape infusion process, showcasing the Caturra variety with a light roast and delightful notes of Kyoho grape, bubble gum, and mangosteen.
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OUR COFFEE
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Roasted Beans
We roast coffee with dedication and believe our delightful aroma of coffee...
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Coffee Capsule
Want to enjoy a cup of coffee in a limit time?Simply place...
Single Origin Collection
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Single Origin - COLOMBIA Los Nogales
Regular price HK$145.00Regular priceUnit price / per -
Single Origin - COLOMBIA Finca La Fortuna
Regular price HK$145.00Regular priceUnit price / per -
Single Origin - Panama Los Cantares Don Tito
Regular price HK$288.00Regular priceUnit price / per -
Single Origin - Panama Hacienda La Esmeralda - Landrace Blend
Regular price HK$165.00Regular priceUnit price / per

ABOUT REACTION
We believe specialty coffee is a journey of experience and sharing, not just a product. We source high quality and distinctive beans from coffee farms around the world with sustainability and community support approaches.

WE ROAST OUR BEAN
In 2013, we step into the fantastic coffee world and focus on coffee roasting.
We believe roasting is not only about passion and artisan, but also scientific.

COFFEE SHOP BUSINESS
Hoping more people can enjoy our freshly roasted coffee, we started our coffee shop business in 2018.
REACTION COFFEE ROASTERS is an Aussie-style coffee shop. The cozy cafe provides the perfect space to enjoy a coffee and connect over a shared enthusiasm for the journey of each bean.

PROFESSIONALISM OF BARISTA
Our baristas undergo rigorous training and regular testing to ensure a high standard of excellence. They know every brew inside and out. Professional yet personable, their passion for the perfect coffee shines through in each cup.
Beans of Season
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【Beans of the season】Single Origin - PERU - CAJAMARCA Finca LA BOLA
Regular price HK$175.00Regular priceUnit price / per -
【Beans of the season】Single Origin - COLOMBIA - La Quebradita
Regular price HK$135.00Regular priceUnit price / perSold out

CHOOSE YOUR OWN BEAN
We offer a curated selection of single origin, espresso, and single origin espresso coffee beans. Come discover rare origins and complex, nuanced coffees!

CHOOSE YOUR OWN BEAN
We offer a curated selection of single origin, espresso, and single origin espresso coffee beans. Come discover rare origins and complex, nuanced coffees.