
Advertise on podcast: For Flux Sake
Rating
4.8from
This podcast has
69 episodes
Language
EnglishPublisher
Kathy King, Rose Katz, Matt KatzExplicit
No
Date created
2021/08/17
Latest episode
2026/11/11
Average duration
40 min.
Release period
16 days
Description
Matt and Rose Katz of the Ceramics Materials Workshop and Kathy King of the Ceramics Program at Harvard University discuss listener questions about clay and glaze. This show will have you laughing and learning about the chemistry behind ceramics in no time.
Unlock For Flux Sake podcast Email contact info,
Listeners & Audience details
Email contact information
Direct podcast contact details

Listeners
Audience numbers & engagement insights

Audience details
Podcast Insights

Podcast episodes
Check latest episodes from For Flux Sake podcast
What should I do with my plaster waste?
2026/11/11
What do you do with your plaster waste? The gang talk about options for disposing of this common studio tool. They also answer listener questions about glazes that crawl when layered and the use of holds in firing schedules.
We are happy to partner with Dick Blick to give away a $100 gift card to For Flux Sake listeners. To enter head over to Patreon and leave a comment under the Giveaway post.
Today's episode is brought to you by Monkey Stuff, The Rosenfield Collection, Wonky Pottery Supply, and Ceramic Materials Workshop's Ware Glazes.
This week's episode features the following topics:
Plaster, crawling, layering glaze, firing schedule
Why did my piece explode when it was refired?
2026/11/04
The worst feeling in ceramics is opening a kiln to discover a piece exploded. Today the gang answers listener questions about explosions in refires and what could cause cracking in slip cast pots. They also discuss Matt and Rose's latest clay body profiling, which now includes 88 new clay bodies sent in from around the world. www.mycmw.com
We are happy to partner with Dick Blick to give away a $100 gift card to For Flux Sake listeners. To enter head over to Patreon and leave a comment under the Giveaway post.
Today's episode is brought to you by Monkey Stuff, Kiln Fire, Sheffield Pottery, Speed Ball, and Ceramic Materials Workshop's Ware Glazes.
This week's episode features the following topics:
Kiln explosion, clay body profiling, slip casting
What happens when I rebisque my pots?
2026/10/14
We love when our international friends call in and today we have a great question from Colombia. The gang talk about making vitrified clay with South American ingredients, the logistics of changing firing temperatures, and the effect of rebisquing a pot.
CMW has a brand spanking new website, including a great new way to check out For Flux Sake episodes. You can also submit your questions for the show directly on the website at mycmw.com/ask. It's an easy way to participate in the show and it's all free. Submit your question today and you might hear yourself on the next episode of For Flux Sake.
Have you checked out the new For Flux Sake Patreon? This is a great way to show your support and have access to discounted merch, live hangouts, and extra episodes. Head over to Patreon and sign up today.
Today's episode is brought to you by Monkey Stuff, The Rosenfield Collection, Wonky Pottery Supply, and Ceramic Materials Workshop's Ware Glazes.
This week's episode features the following topics:
Fly Ash, Wollastonite, vitrification, underglaze, bisque
Does it matter how fast my kiln cools?
2026/10/07
We start today's episode with a trip to Materials Corner to talk about #1 Pottery Plaster. The gang also answer listener questions about converting celsius to fahrenheit and the cooling rates of kilns.
Have you checked out the new For Flux Sake Patreon? This is a great way to show your support and have access to discounted merch, live hangouts, and extra episodes. Head over to Patreon and sign up today.
Today's episode is brought to you by Monkey Stuff, Kiln Fire, Sheffield Pottery, Speed Ball, and Ceramic Materials Workshop's Ware Glazes.
This week's episode features the following topics:
#1 Pottery plaster, K-59 Georgia Pacific plaster, celsius, fahrenheit, cooling rate, kiln
Can there be too much boron in a glaze?
2026/09/09
This week's show starts with a discussion of a recent viral ceramic video and the merits of a potter dipping pots in water immediately after glazing. The gang also answer listener questions about the amount of boron glazes, melting in cone 6 mattes, and a safety concern from drinking out of a crazed mug.
Have you checked out the new For Flux Sake Patreon? This is a great way to show your support and have access to discounted merch, live hangouts, and extra episodes. Head over to Patreon and sign up today.
Today's episode is brought to you by Monkey Stuff, The Rosenfield Collection, Cornell Studio Supply, and Ceramic Materials Workshop's Ware Glazes.
This week's episode features the following topics:
Boron, cone 6 matte, crazing, glaze safety
How do I reassure customers that I don't use lead?
2026/09/02
We start off season six of the podcast with a great question about customer service around ceramics. The gang answer a question from a paint-you-own pottery studio about reassuring customers that they don't use lead and using the full range of cobalt and copper sources that are available on the market.
Have you checked out the new For Flux Sake Patreon? This is a great way to show your support and have access to discounted merch, live hangouts, and extra episodes. Head over to Patreon and sign up today.
Today's episode is brought to you by Monkey Stuff, Kiln Fire, Sheffield Pottery, Speed Ball, and Ceramic Materials Workshop's Ware Glazes.
This week's episode features the following topics:
Season 6, paint-your-own pottery, lead, cadmium, cobalt, copper
Why do cone 10 reduction glazes all look similar?
2026/08/12
We start the episode with a quick trip to Materials Corner to hear good news about the mining of Red Art. The gang also answer listener questions about firing cone 6 clays to cone 10, finding vitrified commercial clays, and the aesthetic origins of cone 10 glazes in the United States.
Have you checked out the new For Flux Sake Patreon? This is a great way to show your support and have access to discounted merch, live hangouts, and extra episodes. Head over to Patreon and sign up today.
Today's episode is brought to you by Rhode Kilns, Monkey Stuff, The Rosenfield Collection, Cornell Studio Supply, and Ceramic Materials Workshop's Ware Glazes.
This week's episode features the following topics:
Cone 10, Red Art, vitrified commercial clay, Materials Corner
For Flux Sake Live in Boston!
2026/08/05
For the first time ever the whole gang gathered in Boston for a live show at Harvard Ceramics. In this episode they answer listener questions about finding inspiration, altering glazes to fire hotter, dunting in plates, and the decomposition of iron in glazes. A very special thank you to Harvard Ceramics and the Harvard Ed Portal for hosting, and to the excellent questions the audience brought that evening.
Have you checked out the new For Flux Sake Patreon? This is a great way to show your support and have access to discounted merch, live hangouts, and extra episodes. Head over to Patreon and sign up today.
Today's episode is brought to you by Rhode Kilns, Monkey Stuff, The Rosenfield Collection, Cornell Studio Supply, and Ceramic Materials Workshop's Ware Glazes.
This week's episode features the following topics:
Hard panning, epsom salts, inspiration, reclaim, plate, dunting, iron decomposition
Do things ever explode in a glaze firing?
2026/07/08
Today we have a special NCECA focused episode featuring questions recorded in person at this year's conference in Detroit. The gang answer questions about explosions in a glaze firing, sanding bisque ware, and wheel cleaning. They also start the episode taking a trip to Materials Corner to talk about changes in the Red Art supply. Thanks to everyone who stopped by the booth to record with us at NCECA. We can't wait to see you again next year.
Have you checked out the new For Flux Sake Patreon? This is a great way to show your support and have access to discounted merch, live hangouts, and extra episodes. Head over to Patreon and sign up today.
Today's episode is brought to you by Rhode Kilns, Monkey Stuff, The Rosenfield Collection, Cornell Studio Supply, and Ceramic Materials Workshop's Making Glaze Make Sense.
This week's episode features the following topics:
Explosions, sanding, cleaning, NCECA, materials corner, Red Art
Do all glazes need Bentonite?
2026/07/01
Today we have a special NCECA focused episode featuring questions recorded in person at this year's conference in Detroit. The gang answer questions about using hot wax, refiring in a community studio, particle packing for brushing glazes, and best practices for using Bentonite in glazes. Thanks to everyone who stopped by the booth to record with us.
Have you checked out the new For Flux Sake Patreon? This is a great way to show your support and have access to discounted merch, live hangouts, and extra episodes. Head over to Patreon and sign up today.
Today's episode is brought to you by Rhode Kilns, Monkey Stuff, The Rosenfield Collection, Cornell Studio Supply, and Ceramic Materials Workshop's Making Glaze Make Sense.
This week's episode features the following topics:
Wax, refiring, brushing glazes, particle packing, bentonite, NCECA
The cost versus reliability episode
2026/06/10
Today the gang compares cost versus reliability when buying kilns and kiln shelves. The episode starts with a question about purchasing S-type thermocouples for new kilns and a discussion about preventing warping in cordierite kiln shelves. On a related but strange note, they also talk about how a popular outdoor grill helped lead the U.S. into our current talc shortage.
Have you checked out the new For Flux Sake Patreon? This is a great way to show your support and have access to discounted merch, live hangouts, and extra episodes. Head over to Patreon and sign up today.
Today's episode is brought to you by Rohde Kilns, Monkey Stuff, The Rosenfield Collection, Cornell Studio Supply, and Ceramic Materials Workshop's Making Glaze Make Sense.
This week's episode features the following topics:
S-type, K-type, thermocouple, cordierite, advancer, kiln shelf, Big Green Egg, talc
Can I add something to a commercial glaze to change its temperature?
2026/06/03
To start today's episode the gang talk about their upcoming live show in Boston. We hope you will join us June 5th at the Harvard Ed Portal, where Kathy, Matt, Rose, and Producer Ben will be ready to answer your burning questions about clay and glaze. They also answer listener questions about what to do when all your glazes mature at a different temperature, and how to identify a mystery white spot in the surface of your fired glaze.
Have you checked out the new For Flux Sake Patreon? This is a great way to show your support and have access to discounted merch, live hangouts, and extra episodes. Head over to Patreon and sign up today.
Today's episode is brought to you by Rhode Kilns, Monkey Stuff, The Rosenfield Collection, Cornell Studio Supply, and Ceramic Materials Workshop's Making Glaze Make Sense.
This week's episode features the following topics:
Live show, glaze temperature, Cone 5, Cone 5 ½, Cone 6, crystal formation
Why do layered glazes look different every time?
2026/05/13
Today we have a special Flux U episode where the gang dive deep into glaze application to answer a listener's question about the chemical and physical limitations of glaze layering. What seems like a simple topic turns out to be quite complex. They also talk about helpful tips for buying and installing your first home kiln.
Have you ever wanted to be on a For Flux Sake episode? Join the gang in person for a live taping June 5th at the Harvard Ed Portal! Kathy, Matt, Rose, and Producer Ben will be in Boston to answer your burning questions about clay and glaze. Do you secretly need even more live shows? June 6th you can join a special Flux U taping at Harvard Ceramics. It's going to be a whole wonderful weekend of clay and glaze mania.
Flux U, is an exclusive perk for Patreon members. If you'd like to have access to additional episodes like this one and special merch head on over to Patreon and join the For Flux Sake community.
Today's episode is brought to you by Monkey Stuff, The Rosenfield Collection, Cornell Studio Supply, and Ceramic Materials Workshop's Making Glaze Make Sense.
This week's episode features the following topics:
Glaze application, kiln, electrician, particle packing, layering
Can I use ash from a volcano in my glaze?
2026/05/06
To start today's explosive episode a listener writes in wondering about using ash from Mt. St. Helens in a glaze. The gang also talk about best cleaning practices for keeping pets and children safe in a home studio, and methods for reducing pinholing.
Would you like to ask your burning questions about clay and glaze to Kathy, Matt, and Rose in person? June 5th the whole gang heads to Boston for a live show. It's going to be a blast! Tickets are available now through the Harvard Ed Portal.
Have you checked out the new For Flux Sake Patreon? This is a great way to show your support and have access to discounted merch, live hangouts, and extra episodes. Head over to Patreon and sign up today.
Today's episode is brought to you by Monkey Stuff, The Rosenfield Collection, Cornell Studio Supply, and Ceramic Materials Workshop's Making Glaze Make Sense.
This week's episode features the following topics:
Ash Glaze, home studio, silica, silicosis, pinholing
What materials should I buy to start mixing glazes?
2026/04/08
We love questions from our educator friends. Today's episode starts with a question from a high school teacher who wondered what the best materials are for starting a glaze lab. The gang also answer a question about cleaning up clay with soap and take a trip to Materials Corner to report on the recent bankruptcy of a major ceramic materials supplier.
Have you checked out the new For Flux Sake Patreon? This is a great way to show your support and have access to discounted merch, live hangouts, and extra episodes. Head over to Patreon and sign up today.
Today's episode is brought to you by Monkey Stuff, The Rosenfield Collection, Cornell Studio Supply, and Ceramic Materials Workshop's Making Glaze Make Sense.
This week's episode features the following topics:
Glaze lab, beginner glazes, soap, Materials Corner
Podcast reviews
Read For Flux Sake podcast reviews
Lil4! 2026/04/02
Love the science!
I love the podcast. Great information and people. I’d even like to hear more from Ben on low firing. Whether or not I like the “rants” about supplies ...
Pixar4Prez 2026/03/19
The best ceramics podcast
Great info presented in an entertaining and engaging way. I do have to say that while Kathy and Rose are a delight, I sometimes have to take a break f...
nick name throwthedice 2025/09/01
Worth my time!
This informative podcast has helped me solve a few problems and it’s just great fun! Kathy’s quick wit provides laugh out loud moments.
DonKopy 2025/08/17
Not to be missed
I am an avid listener of this podcast. It’s both informative and entertaining.
If you work in ceramics, and love to talk shop, this is the place for ...
Melodie22 2025/08/09
A gift of a show
I love this show, so much that I relisten to episodes and on second listens I feel like I learn even more.
Kathy is a great host and really creates a...
The Best Stuff! 2025/08/01
Ceramic Q&A at its best
The banter between Kathy, Rose and Matt always adds some fun to what can be an otherwise dry and technical subject. The excellent information they hav...
Loolaamiiina 2025/06/09
Love the show
I love the show I love that they answer listener questions but sometimes the whole show is just two questions. I hope you can answer more questions th...
jerusalem gurl 2025/05/08
Chat
11 minutes until you got down to business. Love the information but the chat is neither informative or amusing.
JanelleVanderKelen 2024/12/15
OMG SO GOOD
I love this show so much. Recently discovered the podcast and learned sooooo much from Rose, Matt, and Kathy. Really fun to listen to, fascinating top...
StephaniePond 2024/09/25
Audio mixing
PLEASE fix your audio mixing. It is painful to listen with the extreme variances in your hosts audio levels!!!!
Podcast sponsorship advertising
Start advertising on For Flux Sake relevant audience podcasts
You may also like to advertise on these Podcasts

4.711527392
Matt and Shane's Secret Podcast
Matt McCusker & Shane Gillis

4.72569182
Smosh Reads Reddit Stories
Smosh

4.975256754
Small Town Murder
James Pietragallo, Jimmie Whisman

4.71321596
Bulwark Takes
The Bulwark

4.8583398
Didn't I Just Feed You
Stacie Billis and Meghan Splawn

4.4503509
Warfare
History Hit

4.8296872000
Fantasy Footballers - Fantasy Football Podcast
Fantasy Football

4.712849554
True Crime All The Time
Emash Digital

4.8160211997
Watch What Crappens
Ben Mandelker & Ronnie Karam

4.639231171
Modern Wisdom
Chris Williamson