Evil Purple, that is.
There is a particular purple color used in the glass world that has affectionately, or maybe not, been nicknamed EDP which stands for ‘Evil Devitrifying Purple’. This nickname came about due to its tendency to devitrify. I’m not sure why this happens, all I know is that the glass tends to sort of etch itself or turn frosty or chalky looking, depending on how much devit you get.
If applied to beads with other colors it can also cast it’s evil devit onto it’s neighbors. Here is what it looks like in rod form. The tip of this rod has been heated up and melted.

Needless to say, it is a difficult color to work with and there is a love/hate relationship between many lampwork artists and EDP. Some lampwork artist’s refuse to work with it at all. Others have embraced it, and all its quirks to the point of actually making the devitrification work for them in wonderful ways.

It’s a stubborn color, but I am a stubborn person. I paid $60.00 for the first pound of EDP I ever purchased and I vowed not to let it beat me. I used it in every bead I made until I “got it.”
Here I will share with you some of the beads I made during my EDP journey from the earlier beads to my most current beads. All of the beads I will show you are made with EDP as the main “ingredient”.
My current relationship with EDP is pure love. It has gone from the most infuriating and frustrating colors I’ve ever used, to my most beloved and most frequently used color. I’ve used EDP in probably 95% of my beads in the last year, and I’ll tell you why.
First of all, as the photos will attest, it is one of the most diverse colors around. It’s color range is incredible. Colors can range from a soft matte pink, to orchid, to dark purple and even running to shades in rich salmons, browns and yellows, all depending on how you work it.

Melting your EDP into beads isn’t the only way you can use it.
You can also use it to fume your beads, giving them a matte finish, or to make them look etched or frosted.
I especially love what it does to dark ivory. All of these beads have been fumed with EDP to give them a matte finish and the appearance of real stones. Not only does it make them look like stone, but it even feels like stone. Fuming with EDP gives you a much different look and feel than etching.
I’ve created several sets and focals of organic stone-like beads and my customers have always been surprised by how they look and feel.

I prefer this method to etching for an organic stone-like finish. Give it a try, you might like it too. Just pull yourself some stringer from you EDP rod, stick the tip in your flame and flash your finished bead in and out through the upper part of the flame that develops above the EDP.
My greatest EDP eureka moment came much later by accident, and resulted in the creation of some of my most popular style of beads. My Starburst and Nebula style beads. 
The new technique allowed me to get a nice range of colors at once, colors I hadn’t been able to get before, plus the bonus of giving me a reaction that gives me a look similar to the silver glasses on the market, but without the high cost of the silver glasses.
So, with such a beautifully diverse color, what’s not to love? Well, again, it’s a difficult color to work with, but patience and lots and lots of practice definitely pays off.
Here is a set using several techniques with the EDP including fuming the coral spacers with it.

Do I love EDP? Yes, yes I do.
Debra Jennings is a glass bead maker who blogs from her studio in Squaw Valley, CA. Learn more about her by reading her personal blog and see her work on her web site.














Evil Devitrifying Purple Glass · Glass Art @ CraftGossip says:
[...] Debra Jennings at Watch Me Create as she muses about her beloved purple glass, that others have such a hard time mastering. She [...]
April 21st, 2009 at 10:10 am
Susan says:
Those are really fantastic beads! I don’t hate EDP, I like the effect you can get with the reactive colors, but these are just amazing!
April 21st, 2009 at 1:23 pm
Deb says:
Excellent! You need to do a tutorial on EDP. I’d buy it in a flash for sure!
April 21st, 2009 at 2:35 pm
Judith says:
Debra, I own your Starburst & Nebula tutorial and I love, love, love it. And this new article is so helpful and gives me new ideas (e.g. fuming with EDP, never even thought about it).
Thanks for sharing your knowledge. Oh, and as always, your beads are simply stunning!
April 21st, 2009 at 2:43 pm
mallory says:
I just went downstairs to look at my stash of edp. I couldn’t find it! I guess I know what I’m ordering with my next glass order. You must be magic, Deb, to get the color range you achieve with edp.
April 21st, 2009 at 7:23 pm
Nancy says:
Wow! Some absolutely gorgeous beads!! I love EDP but never thought about fuming with it. Guess what I’ll be trying tomorrow?
April 22nd, 2009 at 7:17 pm
FrogsongStudio says:
Thank you all for your comments. I’m so happy you liked my post and I hope you get some cool ideas from it.
As for the fuming, it’s really easy. You can get too much though but if that happens just heat the bead up to glowing, take it out of the flame until it cools off and flash it through the flame to re-fume it. No need to use the EDP, the devit should still be on your bead.
Good luck and let me know how it works for you.
April 23rd, 2009 at 10:26 am
Erin Prais-Hintz says:
Wow. Those beads are amazing. I especially like the ones that have the look of stone or the ones that have that star radiating out. Fantastic beads! Thanks for sharing. Enjoy the day! Erin
April 24th, 2009 at 7:36 am
EDP – Misunderstood? « giraffeoriginal.com says:
[...] know how to tame i! Deb Jennings from Watch Me Create provides some interesting insights into EDP in this article. It’s definitely worth the time to read. It may rekindle a friendship with [...]
January 10th, 2010 at 1:12 pm
Lobolita » Box’o’Shorts from Frantz says:
[...] About a pound of rods that were Odd Lots, Filigrana, or Premiums, including half a pound of Effetre 254, the Evil Devitrifying Purple. This was a surprise to me–I thought it was Heffalump or another CIM purple until I melted it [...]
January 13th, 2010 at 8:20 pm