Holiday-Ornament Painting or Pottery Painting for Two at Pottery Works (52% Off)

Up to 52% Off
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What You'll Get


Choose Between Two Options

  • $32for holiday ornament painting including four ornaments ($66value)
  • $25 for pottery painting for two including one piece each ($52value)

Both options also include the studio fee, paint, glaze, and firing. For the second option, each person chooses a piece up to a $20 value.

Kiln Firing: Transformation Through Evaporation

Ceramics are some of history’s most enduring objects. Check out Groupon’s study of how a lump of clay becomes a piece of art to last a lifetime.

Though it was once clay, a ceramic pot will never revert back to a moldable state—not even when an archeologist digs it up in 2,000 years hoping it contains fossilized cookies. This permanent transformation is due to the pot’s adolescent incubator, the kiln, whose scalding belly fundamentally alters the molecular make-up of clay as it bakes inside. In its pliable state, clay is composed of silica and alumina molecules lightly bonded by molecules of water. For the transformation to occur, these water molecules have to go, and the heat of a kiln causes the moisture to evaporate. This process must happen slowly, however, lest the water turn to steam and cause the piece to explode. 

Once the kiln reaches water’s boiling temperature (212 degrees Fahrenheit), much of the moisture has left—except for the molecules bonding the clay together, which don’t evaporate until around 572 degrees. At this point, no amount of water splashed onto the clay will wake it up or make it pliable again, but the sauna session isn’t over yet. Further milestones are reached at 1,063 degrees, when the silica oxide molecules rearrange themselves (a process called quartz inversion), and at 1,652 degrees, when the individual clay particles begin to fuse together (or sinter). At this point, the clay pot can adopt its new name: ceramic pot, Esq.

Here, a crossroads: if the process stops now, the piece could serve as a bisque, which can be painted or glazed and fired again later. But if the fire rages on, the ceramic will eventually reach a stage of vitrification, in which the particles bond together fully until it’s impervious to water. Shortly after this point, the artist must start cooling the kiln or risk melting the piece into an unusable blob suitable only for a last-minute Father’s Day gift.

The Fine Print


Promotional value expires 180 days after purchase. Amount paid never expires. Reservation required. Limit 1 per person, may buy 1 additional as gift. Limit 1 per visit. Valid only for option purchased. Cannot be combined with other offers or promotions. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services.

About Pottery Works


Pottery Works

Fun or Leisure, Art Class, Pottery Class, Class, Skill & Hobby
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