$12 for Four Groupons, Each Good for $5 Worth of Specialty Coffee at Quince Essential Coffee ($20 Value)

East Colfax

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$20 40% $8
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In a Nutshell

Community coffee shop invites in local musicians for open mics and lets patrons express their creativity with chalk-board-topped tables

The Fine Print

Promotional value expires 120 days after purchase. Amount paid never expires. Limit 1 per person. Limit 1 per visit. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services.

The Deal

  • $12 for four Groupons, each good for $5 worth of coffee ($20 value)

Caffeine: An Energetic Impostor

An obvious part of the appeal of coffee and tea is their ability to widen your eyes and put a spring in your step. Learn how they do it with Groupon’s quick look at the neurochemistry of caffeine.

Behind caffeine’s seemingly magical stimulating effect is some simple neurological sleight of hand. To understand it, it’s helpful to first take a microscopic look at what makes us tired in the first place. Every time a neuron fires, it produces a neurotransmitter called adenosine. Receptors in the nervous system gauge the levels of adenosine in the brain, running through the spinal cord, and emanating from the top of the head. As those levels rise continually throughout the day, the brain is programmed to start winding down.

Therefore, as adenosine builds, one’s sense of alertness fades—unless caffeine enters the equation. Caffeine molecules happen to be shaped just like adenosine, and the receptors in charge of monitoring the neurotransmitter’s presence cannot distinguish one from the other. Caffeine binds to the receptors just as adenosine would and simply blocks them, preventing them from detecting actual adenosine and transmitting the associated message of fatigue to the body. In so doing, caffeine forestalls the body’s sense of tiredness until the dose wears off and the brain can detect real adenosine again, typically five or six hours later.

Customer Reviews

The vegan pastries are amazing, the staff is friendly and cool, and they literally have the best coffee in Denver. This is BY FAR our favorite coffee shop! Plus, the converted house is an awesome atmosphere and they do open mic nights!! What's not to love?
Megan K. · July 9, 2016
Hang out on the patio with our pups or the enjoy the cute layout inside
Jen K. · June 28, 2016
Quince reminds me of the 'old fashion' coffeehouse. It's an older two story home filled with multiple rooms to either drink alone or with several friends. The service is beyond amazing! I've already recommended this place to many friends.
Laura R. · June 11, 2016
Merchant Location Map
  1. 1

    East Colfax

    1447 Quince Street

    Denver, CO 80220

    +13039552479

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By purchasing this deal you'll unlock points which can be spent on discounts and rewards. Every 5,000 points can be redeemed for $5 Off your next purchase.
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