Skip to product information
1 of 6

Bishop Randall

Bishop Randall - Light / Dark Brown Encalmo Slide Bowl

Bishop Randall - Light / Dark Brown Encalmo Slide Bowl

Regular price $220.00 USD
Regular price Sale price $220.00 USD
Sale Sold out
Shipping calculated at checkout.

Encalmo (classically known as Incalmo) is a Venetian glass blowing technique that involves fusing different glass sections. Encalmo pieces are traditionally worked with several bands of color, stacked on top of each other to create a uniquely heady aesthetic. This is an impressively tricky technique to get down, as colors require different temperatures to work without damage.

“Incalmo” literally means “graft” in Venetian, and that’s the perfect word to describe this technique. In order to make an encalmo piece, glassblowers must work two separate bubbles of glass and then join them together. In order to join the separate parts, glassblowers open the end of each bubble and join them in the flame. The joining is particularly difficult because the lips of both bubbles must be identical sizes to be joined correctly. Traditional encalmo vases and receptacles feature two or three different colored sections joined together. Contemporary functional glass pieces often feature several encalmo sections, creating a one-of-a-kind spectrum of color.

In order to make crazy encalmo pieces, glassblowers prep encalmo sections of whatever colors they’d like to work with. This process is slow and steady, as glassblowers repeatedly stack colors on the flame and then condense down the sections. Once the tube is smooth and even, it’s ready to be worked into a piece!

As if making encalmo prep wasn’t tricky enough, the cooling process is especially stressful for the piece. Different colors of glass are made up of different formulations. These formulations result in the glass shrinking or expanding more, depending on temperature. When placing an encalmo piece in the kiln to cool, one colored section of the tube may want to shrink more than the section directly above it. This difference is great enough to cause cracks where the colors are fused together, resulting in a broken and unsellable piece.

While the technique is tricky to truly get down, encalmo enables blowers to blend colors in a particularly unique manner, It's a skill only practiced by Master Glassblowers as it requires a significant amount of training and discipline.


  • Approximate Measurements:
    • 2.25" in Total Length
    • 1.0" in Diameter
  • 14mm Slide
  • Single Hole Bowl
  • Light Brown Rim with Dark Brown Body Encalmo
  • Sandblasted Glass, with a Flame Polished Finish
  • Made by Brian "Bishop" Randall in San Juan Ridge, California
    • IG: @bishop333


*All Glass Sales Are Final, No Returns*

View full details