Blooming Effects

Question

What exactly makes coffee "bloom"?
Thanks, Cherie

Answer

Cherie ,

Great question! Brewed coffee is an elixir of chemical components and soluble
compounds. I have read that there are well over 800 aromatics that have been
identified and I am sure that number has grown. The chemical make-up of brewed
coffee was affected by the growing conditions for the green coffee, processing,
degree of roasting, grinding for particle size as well as brewing temperature
and method. Brewed coffee continues to evolve or bloom, through aromatics rising
to the surface and escaping and acids combining and reforming into new ones.
These changes affect how we perceive acidity, sweetness and aroma in the cup.

Happy Brewing,
Dr. Brew

Serving by formula

Question

Susie from Chatham Area Public Library

Dear Dr. Brew,

The Chatham Area Public Library District recently purchased some Bunn-O-Matic equipment. We were recently trained on using the Twin Airpot Brewer. The Library will be purchasing and using pre-packaged coffee. However, we will be having community groups using the brewer with their own coffee. (One of your staff) suggested that we use 3.25 ounces of coffee to make the perfect pot of coffee. What does this figure relate to in cups?

Thank you,
Susie

Answer

Susie,

Thanks for your question. The finished volume in the airpot is dependent on the set volume of water sprayed over the ground coffee, minus the absorption rate of the ground coffee. As an example -- with the volume set at 64 ounces of water dispensed and 3.25 ounces of ground coffee, the finished volume would be approximately 55 ounces of beverage. Ground coffee absorbs approximately 2 ounces of water per ounce of coffee weight. From this example, the number of cups/ servings would be eleven, 5 ounce servings.

Happy Brewing,
Dr. Brew