"I have not been pottery long and I have decided to try to make my own glazes. Your web site is great. I like your cone 6 base glaze."
"Very useful articles on practical solutions to the every day problems Ceramic Technicians face in their organizations."
"Your website has been very helpful to me over the past several years. I refer fellow potters to it constantly. Your G1214Z matte glaze formed the basis for the glaze used on my tea bowls."
"I just want to thank you for this generous, helpful and very educational website."
"I want to also thank you for all you have done for the ceramic and pottery industry."
"This is a excellent site for Ceramic colors and containing very good knowledge for Ceramic coloring agents. Thank to Digitalfire Ceramic Oxides Directory."
"Keep up the fantastic work!"
"Your information is very professional and I would like to incorporate in and on going education blinder for our community studio."
"I'm finding the magic of fire fantastic!"
"Your Magic of fire was a waker upper, had to read it a few times this past few months just to give my head a shake. Yes, I am having crazing issues, and its past time to get away from Gerstly Borate. Just purchased numerous frits and actual commercial stains. After 30 years in the biz, I am going to do this!"
"I am learning so much from your website, even after 33 years in business as a ceramic producer."
"If you didn’t know yet (most people don’t really express how they feel so I’m talking on behalf of the whole pottery community), you have become our most trusted & valuable ‘all things pottery’ resource. Thank you for your time, and the wisdom you share with all of us. I’m a humble newbie and i want to tell you how much I rely on the information you post and how much I appreciate everything you do. I want to name you ‘the clay angel!’."
"Your website and program have been a priceless resource for me on my journey to understanding glazes."
"I think you have done a great job in developing the on-line version. It is very easy to use. We meet once a month to discuss any glaze problems, test glazes in teams, and I do a presentation on an aspect of glaze chemistry. One day, I said something technical and one of the member's jaw dropped and she said "Hey, I just realized I understood what you said". It was a proud moment."
"We appreciate you and your website so much!"
"Thank you so much for visiting my site. It really means so much to me, being that the info and recipes on Digitalfire helped me SO much and greatly contributed to where I am today with my pottery. I am so grateful for all of the information you share!"
"Dear tony: Nice work keep it up! "
"Am learning to use Insight, love the articles in the reference database. Thank you for everything you have done and are doing."
"The body of work you present, and the obvious attention you have paid to your website, is quite noteworthy. To me it’s a bit like AutoCad: it has everything, but you need training in how to use it!"
"Great software!"
"It looks TERRIFIC!"
"I have my degree in engineering and "caught" the bug two years before I graduated. I really like your program, very intuitive in operation and good results."
"I am firing a downdraft propane kiln to cone 10. I have been using the Digitalfire software to better understand the glazes I know and see their similarities/differences. I enjoy glaze chemistry but I am tired of testing blindly and floundering around with countless buckets of glazes that don't really satisfy. I want to test smarter."
"I continue to use Insight almost daily and it is a fantastic tool. "
"I formulate clays and glazes for a clay manufacturer ... Insight has been a valuable asset to our formulation process and the testing procedures you recommend have been of great use to us over the years as well. "
"I solved a shivering problem with a low expansion/high expansion frit system as recommended at Digitalfire so I bought INSIGHT."
""I was so glad to know your Website several days ago. I thought that you did a great thing for ceramic community.""
"Your program Insight has been responsible for me spending way more time in front of a computer than I could have ever imagined. Thanks to you I now have a tool that gives me a better understanding of what is going on with my glazes. I have always enjoyed mucking around with glazes, now I'm in danger of becoming a glaze geek!"
"I am a teacher with many years experience, I am pashionate about glaze calculations. You have done good work. Most people in the know care about and appreciate you."
"You have compiled a great resource for the world of ceramics!!! Thank you for a great web resource and I look forward to the assistance that Insight should provide to our Tile operation."
"I have been doing a LOT of reading and learned of your software through the book Mastering Cone 6 Glazes by John Hesselberth and Ron Roy. It became obvious in my reading about glazes that to glaze a piece and know that it was safe for others use and handling was paramount to me, ... people will always use an object in ways you never imagine:) I also want to know why for everything."
"We are using your 1916 glaze recipe on low fire ware and my students are asking a lot of questions about the safety of the pottery they are making, does it leach. I do not know how to answer them. Please help."
"I have a huge concern about liner glazes. I have run across some potters who have taught classes where they gave no direction about what is suitable for liners. When doing a simple lemon test their glaze failed miserably."
"I just read on another site that crystal glazed ware cannot be on functional (eat off of) ware. I do not believe this is true. I suspect it depends on the glaze formula. There is a pottery in Maine that does almost all crystal glazes and they are on food dishes."
"I have large cobalt blue glasses in my kitchen. At night I leave water in one when I go to bed. I noticed a distinct metal taste in the water each morning. I tried putting water in an identical sized clear glass and noticed no metal taste after more than 24 hours. I repeated the experiment with different water(bottled). I got the same result. After 24 hours the cobalt glass reeks of metal taste. Can cobalt glass actually excrete cobalt into water?"
"Your comments about the ethics involved in selling functional wares make sense to me, but not to my studio friends. I'm studying ceramics under studio potters (making functional wares) who NEVER test new glazes for durabilty, leaching,etc. (despite? college degrees in ceramic art)."
"I participated in a workshop with .. this past weekend. When he was talking about glazes and demonstrating his techniques, I steeled myself to ask him if he worries about the functionality of his glazes. I figured everyone would laugh at me for bringing up such a subject, but I felt like it should at least be said, given the amount of young student potters in the group if nothing else. As expected he said he didn't worry about that. High fired glazes shouldn't pose any problems, was what he said. "Why is that?", I asked, "Is it because they are fired to such high temperatures that you don't worry?" He said it was. I thought to myself, what does that mean, that if you fire to high heat you kill everything bad -- like germs. I've never known a potter who considers functionality in their glazes. "
"My partner in crime (wife) is concerned about crazing and we are both concerned about leaching of toxins into someone's dinner...... so we have a keen interest in stability."
"Because of media warnings to make people wary about using brightly coloured pottery, I would like to put together some advertising that I can distribute with the work to give people confidence in using brightly coloured hand made pottery. I am wondering if there should be anything further that I could do to have this work tested to guarantee no toxicity in leaching? .. You have no idea how grateful I would be if you can help me or advise me re the above. I am reluctant to do any production until I am satisfied that my work is safe for people to use. "
"There is a local potter who has been selling for 30 plus years. He has sells all of his work as food safe and dishwasher safe. One of my students bought a black piece, sent it through the dishwasher and it turned blue, we did a 12 hour vinegar test and it turned green."