Celtic Cup Coffee has updated the operating hours for its downtown Silver Spring location.
Roastmaster and former NASA computer scientist Doug Ilg opened the micro-batch roastery and tasting room on the ground floor of the Argent Spring office building in January after operating as a Maryland Cottage Food Business since 2019.
Founder and roast master, Doug Ilg, is a computer scientist by training. After a 30+ year career, including working with NASA and other agencies to devise ways of computing, organizing, storing, and distributing science data imagery from various Earth observing environmental satellite systems, he has decided to follow his passion for coffee and help his community by broadening their home coffee brewing horizons.
Doug began his coffee journey early in life. His earliest coffee memory is as a boy of 6 or 8, pleading with his parents to be allowed to join the adults with a cup of coffee. When it was allowed, it took the form of a carafe of hot water and a packet of Sanka® instant.
In the 1990s, Doug was introduced to home coffee roasting by a co-worker whose husband roasted coffee on a cookie sheet in their home oven. After a short tutorial, he started roasting tiny batches in his own home oven. This sparked an abiding passion for producing the best possible cup of coffee. Since then, he has cycled through several small home roasters, all the while learning the intricacies of the craft of coffee roasting.
In 2019, Doug founded Celtic Cup Coffee, focused on custom roasting coffee in micro-batches and helping people produce their best cup of home brewed coffee. At that point, Celtic Cup began operating as a Maryland Cottage Food Business, a special category of business that produces very low risk foods in the home.
On January 2, 2025, Celtic Cup opened its first proper brick & mortar location: a beautiful new “Coffee Roastery and Tasting Room” concept at the Argent Spring Building in downtown Silver Spring. Come visit us at 8455 Colesville Road, Suite 101B (right next to the building lobby entrance). You won’t regret it!
Celtic Cup Coffee at 8455 Colesville Rd. is open Monday through Wednesday from 8 a.m. to 3 p.m., Thursday and Friday from 8 a.m. to 4:30 p.m., and Saturday from 10 a.m. to 3 p.m. Order online at celticcupcoffee.com.
