A One-Hour Glassblowing Class for One or Two at Denver Glass Academy (Up to 51% Off)

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Up to 51% Off

Customer Reviews

156 Ratings


Sarah B. · 1 reviews
· Redeemed 2 days ago
Far more than i ever expected!!! i would have galdly paid full price if i had know how good this was going to be. I wont need to pay full price as they even offered a discount on our next visits which have already been planned. They gave me acsess to do something i never thought i could do. The memories are something i will always have but the passion to grow a new skill is immeasurable.


Darla P. · 3 reviews TOP REVIEWER
· Redeemed March 14, 2018
Awesome instructors allowed experimentation with handling glass using a modern technique to an ancient art form. Interesting, informative, and enjoyable. Will go back again.


Holly B. · 1 reviews
· Redeemed March 12, 2018
The instructor, Zack (Zach?) was great. It felt totally fresh and authentic, and not rehearsed. He was very informative, helpful, and clearly loves what he's doing. This would be a great date night, and I'd totally recommend this experience to anyone.

What You'll Get

Choose Between Two Options

  • $51 for a one-hour glassblowing class for one ($100 value)
  • $98.50 for a one-hour glassblowing class for two ($200 value)

Glass Blowing: From Bubbles to Baubles

Based in simple chemistry, the techniques behind glass blowing have barely changed in 2,000 years. Read on to clarify your understanding of the science of stemware.

At the base of the torch, a pool of liquid simmers at more than 2,000 degrees Fahrenheit. Armed with only a hollow tube and a few deep breaths, an artist can shape this glowing liquid into colorful pieces of art ranging from vases and pipes to sculptures and useless swords. Forming a solid structure from a liquid may seem like medieval alchemy, but it’s all possible thanks to the unique properties of glass. Though virtually solid at room temperature, glass has a molecular structure closer to that of a liquid, with a relatively random organization of molecules rather than a rigid, orderly arrangement. In fact, purists would describe glass as a super-cooled liquid with such a high viscosity that it resembles a normal solid. When heated, the materials that make up glass—typically silicon dioxide (sand), sodium oxide (soda), and calcium oxide (lime)—soften, allowing a glassblower, or gaffer, to manipulate the mixture’s shape in its molten form. Once cooled, the glass retains its shape—until, of course, it shatters when an opera singer hits a high note and drops it on the floor.

Since most glass is naturally transparent, a gaffer must add metal oxides to the molten blend to give it color. Different metals determine the hue of the final product: cobalt lends the glass a blue tone, gold a ruby red sheen, and manganese an amethyst tint. Next, they dip their metal pipe into the furnace, letting a layer of the liquid build up on the end, and cool the other end of the tube in ice water or day-old coffee so they can blow into it, causing the glass to form into a bubble. As the artisan shapes this bubble through a variety of methods, they must constantly rotate the pipe, applying centrifugal force so as to prevent the (not-yet-solid) glass from dripping.

The Fine Print

Promotional value expires 120 days after purchase. Amount paid never expires. Reservation required. Limit 1 per person, may buy 1 additional as gift. Valid only for option purchased. Must be 18 or older. Groups larger than two people cannot be purchased through Groupon; please contact Denver Glass Academy to purchase classes larger than two people. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services.

About Denver Glass Academy

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.