POTTERY BASICS - Measuring Temperature using CONES!!

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In this video we are discussing how to measure temperature in a kiln for pottery and ceramics.
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7 сен 2024

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Комментарии : 209

@elrikakoppeschaar5743 4 года назад

Please, Oh please do a "how to know if your pottery is food safe" video!! That would be so helpful.....

@benpatterson4452 4 года назад

Professional potters, don't really like the word "food safe" as it is not a defined term. Different governing bodies have their own set of standards, that test for certain things. Many only look at the obvious culprits like lead, cobalt, cadmium, but not other like copper or iron. The latter two can still affect people, with certain medical conditions, but as it's a small percentage we don't concern ourselves much with those materials. What potters aim for are durable, stable, non-leeching glazes. Colors are surfaces that don't dull, and worst of all, give off some of their material into the food/ drink. There are simple ways to test glazes for this, like the lemon test and by repeatedly washing them in a dishwasher. For glazes you make yourself, you want to find tried and true, reliable recipes. For commercially made glazes, the companies rigorously test them, before they go on sale. In either case, it is still a good idea to test them, on your wares yourself.

@RegineAteliers 4 года назад

Food safe glaze isn't food safe if it's put on a high fired bisque and crazes.

@posjoey 4 года назад

I wanna see the basics of a running a kiln! My wife is doing homework on what kiln she wants to get

@katlynjacobs3309 3 года назад

I want one of these too.

@benpatterson4452 4 года назад

A couple of extra notes. Cones don't exactly measure temperature, like a thermometer, or in this case pyrometer, but instead measure "heatwork". This is the amount of heat, over a certain amount of time. The classic example is cooking a roast. If you put it in a cold oven, and set it for 350 degrees, you don't take the roast out, when the oven reaches temperature, as it hasn't fully cooked yet. Instead, it has to be at that temperature over a given amount of time. The same is true for ceramics. A lower temperature, held for longer can equal a higher cone. And a higher temperature not held long enough can equal a lower cone. Also, for kiln sitter controllers, they have pyrometric bars, that are recommended over the traditional cones. The bars melt more consistently, and with less error. The cones can trip the sitter too soon, or worse not at all, if placed incorrectly. The bars don't have this issue. By the way, I love the outtakes, you've had in the last couple videos.

@eheper 2 года назад

This was exactly what I was looking for in this video. Do you have your own channel, or web site?

@mssunniek Год назад

Why is it soooo hard to actually see what a witness vone looks like when it meets the desired temp? Search and search and pics mostly show the overlapping of a series like a witness cone at 5, one at 6, one at 7 all together. Yet if you fire a 5, use a single witness cone for 5, the result should be relatively consistent-toe touch! I’m trying to settle a disagreement with a pottery mate. I say it should touch, within 20%. She says if the cone moves at all, it’s right on but if it touches it’s too hot. How do I settle this?? I need pics! Thanks!

@Cheiko18 4 года назад

You should be given an award for making this video. This helps so much for neophyte potters

@shanethepotter 4 года назад

I would like to see a video on ways to recycle clay. Now there I way better than another. Tricks and hacks. Also ways to fix cracks that appear in the drying process.

@tiffanycaponigro4684 4 года назад

A basic video on clay types would be awesome!

@danflurry 4 года назад

You mentioned that you started bisquing at 04 to eliminate pinholes, but what are the advantages/disadvantages/reasons for doing glaze firings at different cone values?

@lindabeebe7065 4 года назад

I wish he had responded to your question. That’s what I was going to ask. But if he can’t answer when you asked he’s not going to answer if I ask it now, 7 months later. 😒 Seriously dude, don’t just ask us to comment below and enjoy the perks of the comments but not reply to them within the comments. That’s poor quality YouTubing. 👎🏼

@jessiestevens5952 4 года назад

I found your videos about a month ago and I'm taking my first pottery class this Thursday!!

@hobblecreekpottery 4 года назад

I thought of another video. How about one on selling on Etsy? Or doing one on social media and selling pottery. You do so well at it.

@mercedezhelton1154 4 года назад

Sorry if you've already covered this but I'd like to see a video on how to get started at home? What to buy/needed to start a home studio. Also LOVE the videos, I've learned so much.

@bococlacko9380 4 года назад

Thank you! I'd love to see a video about different types of ceramic and stoneware, strengths, weaknesses and general experience throwing/slabbing and finished... Do you ever work in porcelain?

@marilynlockwood3311 2 года назад

I too would welcome a video regarding types of clay and the various characteristics for both hand building and wheel throwing.

@janellemorris3508 4 года назад

Hahahaha love the bloopers/extras at the end!

@LisaBuxton 4 года назад

Hi, great video on the orton scale but I still don’t really understand how you use cones? Like do you put them in the kiln every time you fire something to test that your kiln is reaching the correct temperature? Or are cones used more for detecting errors or cold spots in the kiln if and when they occur? How often do you put cones in your kiln? Also how do you stand the cones up in the kiln and where are the best places to put them in the kiln? Loads of questions! Perhaps my questions are valid for a part 2!

@gsandau 4 года назад

Good question! I know potters who put multiple cones in to see if there are hotter spots in the kiln.

@chrishuber2768 4 года назад

If you want to be sure you know whats going on in your kiln, you use them every time. You can be confident your pottery is done well and can help troubleshoot problems if something does go wrong.

@raquelasandino5825 4 года назад

Just finished Basic kiln firing class here in Seattle. Suggestion: next video, show how to make cone packs! This will really help beginners.

@CeeJayKay Месяц назад

I really would love a class like that.

@goirkens 4 года назад

How about a video on starting your own studio? Such as what to look for in a space, what to look for in a kiln, what's reasonable to spend on start-up supplies, etc?

@annschroeder8088 4 года назад

How to set up/start the kiln

@heathergrant9774 4 года назад

Hi Jon. I have recently had to use cones as my new kiln was over firing. Even with a modern controller its handy to use cones to check actual temp your kiln is firing at. My controller was set to cone 7 and it actually burned at cone 9! so now I set my controller lower :-)

@gaston. 5 месяцев назад

Thank you Jon The Hairy Potter! ... from a complete newbie this was very helpful!

@peggyhollis8050 4 года назад

Good info. Wish you had shown how you place the cones in the kiln...

@lauraburton627 3 года назад

Agree. Where do you put them?

@denavess732 4 года назад

Thank you for sharing! Just got my kiln but not used yet. How do we know if the cone temperature is right for the glazes? How do you know to set temperatures hotter than cone 6 or less get desired effects of glazes? Love watching your videos! 😊

@freddiemoretti8456 4 года назад

Hi Jon, good info. Doing just a Single Fire I am only concerned with the glaze firing and I like to do a slow firing so my cone values fall under the heating rate of 27(slow) .....my ^6 would be set for 2165 F, not 2232 F which is at the 108 rate(medium)....... Hopefully this will inspire folk to take the time to watch the Orton videos as well, to get a better understanding of how the cones work. Thanks for sharing this good reminder of how important it is to use witness cones!

@jessiewlv123 4 года назад

Should do one on testing for vitrification

@granywonder57 4 года назад

What good coneage description right there.

@DeeNeesieC 4 года назад

Please do How to load a kiln (what should go top vs bottom, judging pieces to place together, tumble stacking, etc) ...bisque and glaze loads. Plz! TY

@snoogs30 4 года назад

Thank you!!!! Totally understand cones so much better now. Haven't used my kiln because I didn't understand them at all. I will be looking forward to more videos like these basic ones. I love all your vids. Thanks!

@hobblecreekpottery 4 года назад

I would like to know what glaze you used on the mug. Love it. Also, I love what you are doing with the colored clay, and I have also been experimenting with mason stains. I'd love a video on the colored and marbling of clay. :) Love the videos and always look forward to the next one. You are amazing.

@coeywong2536 4 года назад

I would like to know more about clay please. Like what the difference between stoneware and porcelain 😊

@adb9751 4 года назад

Not sure if this is exactly the answer you're looking for but here goes. Porcelain is very smooth, when you're throwing with it, kind of feels like butter, it's pretty difficult to build tall things with, because it can cave in since there's no sand holding the Clay together (like Stoneware has) porcelain is just very thin and light. Stoneware is a bit tougher, it has the sand particles in it to hold it together more, & make it stronger, which means you can make pretty big things usually, stoneware is also less expensive it's less valuable too.

@raquelasandino5825 4 года назад

Throwing porcelain is not a clay body for beginners. You can throw tall forms but it helps to add grog to the clay body to help it stand up.

@blakeclewis 4 года назад

digitalfire.com has articles for porcelain and stoneware that are very good.

@anniehirabayashi7968 4 года назад

Wow! Thank you so much. Would love more on basics of firing your clay.

@lisalovelylpa 2 года назад

Wow great summary. I never knew cone ten was more common range for cone ten. I a complete beginner and building a gas fired kiln lol be happy to do low fired clays and glazes.

@booty36 4 года назад

You were on “Daily dose of Internet”!!! Loved that fail!! XD

@jeffbeard8336 2 года назад

Thanks, I’m just getting set up w/ my g-kids. You’re very helpful ( I used to do a lot of pottery but that was 1975!!

@gopasen1658 3 года назад

Thankyou very useful....specially about the 06 and just 6....clarified !!

@yvonneshort4268 Месяц назад

Absolutely Brilliant! Thank you so much!

@caterinacoffey3242 4 года назад

I’d love to learn a little about mixing glazes ~

@MatthewandRyan 4 года назад

OMG NEEDED THIS SO BAD! THANK U SO MUCH

@julies4106 4 года назад

I live in Florida, where the tropics begin. You can come stay with us, and teach this newbie a few things about pottery. I love your videos!

@matilda120 4 года назад

I have many more questions! You said that the old kilns will use the cones to be turned off, but what about the new ones? What do you use cones for now? Why can’t you just set the temperature you want on your kiln if cone = temperature? Is the cone you fire to what determines if your pot is food safe? If firing to cone 04 fixes problems like pin holes, why fire at 06 in the first place? Is there pros and cons to fire at lower or higher cones? And can the same glaze be fired to different cones with different results or do they only work at a specific cone? I would love another video on this subject because I feel like you left a lot of questions unanswered in this one. I’m also waiting for a video on that gorgeous marbled clay! Keep up the good work ♥️

@maud06myr 4 года назад

Only old kilns with a kiln sitter use the small cones and are then turned off when the cone melts. In a New kiln (with electronic pyrometer/controller) we use the cones to calibrate our kiln. We ideally place different groups of 3 cones in a small mass of clay or in a stand on shelves inside the kiln so they are visible from the peep holes. The 3 cones in each stand should be a gradation of your projected firing temperature (ex:one of each cone 5-6-7 for glazed stoneware that should fire at cone 6 ). If your firing is successful and oven well calibrated the cones 5 will be melted, cones 6 will be parabolic and cones 7 slightly bended. This way you can avoid a misfire or trouble shoot why you are misfiring (burnt out elements, fracture in kiln, drafts).

@jedidiah72 4 года назад

You told us what they were not how they actually worked.

@kim-sandykline8149 2 года назад

basics to better understand glazes. enjoy your videos. thank you.

@quantumrenaissance 3 года назад

Thank you! Liked and subscribed! Nice to find another vibrant teacher in my youtube education xP

@normagarcia8657 3 года назад

Thank you. It explained alot. I would like to see Basics...explain glazing and why the colors you use come out another color than what they look like

@sewgatormomm 4 года назад

Wow! Thank you so much! “Conage” was like a foreign language to me. I had no idea what it meant. You explained it so well. The cones melt and turn off the kiln? I know zero about kilns, but now I know why my class projects have pinholes. That chart you drew is now a visual in my brain. I won’t forget it😊

@dedrehetherington8675 2 года назад

Thank you!!! These videos are so helpful!

@alanmandel109 2 года назад

You should do a video about how long to hold temperatures at? And how long to fire bisque fires and glaze fires. Love the videos 🙌

@kitgarvin9253 4 года назад

Maybe talk about food safe glazes

@ixcali241 3 года назад

Hey Jon 👋🏻 I’m an absolute beginner. So I’d like to see how to use the cones. Like a demonstration video or a first time use video and how to know if your using the kiln the right way. Also what clay is best to use and also accessible. Also I’m contemplating on buying a used kiln since im just starting out. What should I look for in a used kiln? Thanks!🙏🏻😊

@rogeliocuchito 3 года назад

Hi John, very good advice about pinholes 😀

@merzah4565 2 года назад

This video has helped me a lot. Could plz make a video about how to make a slurry for casting including the ingredients?

@DebraHaller 3 года назад

You crack me up. You make learning fun, thank you. So hard right now. I got my own wheel and kiln right before Covid hit and so now I can not continue to take the in person classes that I was intending to.... still haven’t fired the kiln... Wish I lived down the road from you guys!! Thank you for continuing to educate me... hoping to have the nerve to plug the kiln in soon as my green ware shelves are getting full - lol!!

@veerlevandaele257 4 года назад

I would like to know your opinion about different potter's wheel. why do you always stand up while you are throwing? What is the advantage and disadvantage

@madimelton4336 4 года назад

This video helped me a lot. Im taking a ceramics class and we are learning about Cones this week 🙂

@tindlevibes4680 3 года назад

Getting some review here and you name drop our boy Hammerly!

@jordang2867 4 года назад

What happens if the temperature is too high or low when doing the bisque or glaze?

@debzfiedler6100 4 года назад

WooHoo! Yay for Pottery Basics videos ('cause basic is definitely where I'm at now)! P.S. October 23, the day this video was posted, it was 95° here. Yowie-Zowie! ~Debz

@RayThePurpleDragon 3 года назад

When I get back to Pottery, I'll buy the Skutt Kilnsitter Kilns. I'm old-school like that.

@katlynjacobs3309 3 года назад

Would love you to make a video about how to run a kiln. Take care of kiln shelves and furniture. I'm about to get a kiln, but know nothing about how to run one. Thanks for all you do, Jon! These videos are so appreciated!

@user-ww1tm1nt7i 7 месяцев назад

I love how basic you explained this. Can you explain how to set a kiln program for Bisque and then how to set for Glazing? I want to make a small plate in my kiln. New to this. I love simple explanations :) I do fuse glass so have some idea of how to program. Thanks so much.

@CeeJayKay 3 года назад

Please make videos showing different kinds of clay, I’ve been hoping to get speckled clay pretty soon. And also please explain the kiln sitter. And please explain whatever you know about an old kilns (like the one I bought today and may end up throwing away, which is a Cress B23H. )

@Woncayo 3 года назад

Sooooo helpful, thank you

@kristio8479 4 года назад

Make an appointment with Continental Clay to show the process of what where and how they obtain their clay. And then maybe also do another segment where you show the evolution of the clay from ground to finished product!

@Ouchimoo 2 года назад

Nice! I didn't know you were in Minnesota! Me too! This Christmas Minnesota didn't seem to know if it wanted to be cold or not it seems! Anyway, I recently started working at a mug manufacturing shop... which is great because I haven't worked with pottery since high school and it's really inspiring me to get back into the craft. However when I was in highschool, my school was so small I don't think we even had glaze outside of one color. So I'm working at this place and I'm glazing and setting the kilns to cone 5 (which is what our glaze uses) and I don't even know what cone means haha. But it is inspiring me to learn more about pottery because I really enjoy clay sculpture. Do you have another video explaining the difference between cones and temperature? I'm starting to get a rudimentary understanding but I think you'd be great at explaining it.

@caterinacoffey3242 4 года назад

Also I love the bloopers! So funny! “Can you see me” 😂

@tombones847 4 года назад

Hey JTP, strong cartwheel and a big fan over here in the UK where it is NOT snowing. Is raining though, obviously. I’d like to know about functional tableware, whether it has to be stoneware and if an electric kiln can really cope with the temperatures needed to make that? If I do earthenware and glaze it really well is that going to stand up to the stresses my mugs have to (I love coffee and they certainly do get a battering)? As a newbie, what kind of kiln/clay do I use to make stuff I can use for years?

@markstrehlow3579 4 года назад

Great explanation for using stoneware/mid-fire clay. Just be careful not to fire low-fire/earthenware clay past cone 06.

@linr1294 4 года назад

I would really like to see a video on commercial glazes and food safety... Is it safe to mix/layer different brands, best practices for food safety testing, microwave safe... do u test every mug every time before selling?

@jordankohs1795 4 года назад

Please share one about the whole drying process and how long clay takes to get to leather hard (depending on the year and variables), then adding a handle/etc, and firing/glazing. I am still fuzzy about timing for all of this and the variables that can change this process to longer/shorter.

@Bhooooooooooo Год назад

Thank you.

@tammiehill5136 Месяц назад

That was so helpful 😊

@mariacarrasco869 4 года назад

You’d fit right in as a Californian. Jonathan! 😉 How about slabs and how thick it should be for hand building different type pots. And how to avoid warping. Also how to make the bottom of pots smooth and pretty. Peace!

@mrwebbelfixit 4 года назад

Hi Jon, What are the issues you had with pin holes what does that look like?

@Laura-it4ow 4 года назад

basics.... wedging, trimming, and centering? Types of glazes? under glazes, food safe glazes, etc.

@____Ann____ 4 года назад

Yes, underglaze, food safety, microwave proof, would be interesting.

@lynnlsmith8577 4 года назад

my students at san clemente high in calif. love your style.

@lindsaymcdaniel6561 2 года назад

Thank you!!! I just did my 1ST TEST firing at Cone 04, and the kiln over fired the cone. Any chance you can create a video on how to make adjustments to your kiln for over + under firing? Thanks so much!

@jackiemiddleton7803 2 года назад

Thank you. I got it now. Jxxxx

@annettemeglino7232 4 года назад

This explained a lot, thanks. But why fire at one cone vs. another?

@margotsoltice8794 4 года назад

1. Cool, I didn't know about pinholes and bumping up to 04, thanks. 2. My Dad (83 now) did gymnastics up to the age of 75 in a group called U of Agers (our uni is called U of A, for Alberta). He now works out 1x/week and then drinks beer and eats sausage snacks. haha. Gymnastics might be excellent for staying fit for wakeboarding.

@aimeeholloway 4 года назад

This was really informative, thank you!!! I'm really looking forward to more pottery basics videos 😁 I've just started out potting and am loving it!! Is like to know more about clay types used in throwing vs handholding, what are the compositional differences? And how does this affect the usability?

@androidgott 4 года назад

Hi Jon, I'm learning so much from your videos thank you! I have a few questions. What is the difference between stoneware / porcelain. Is it clay and cone temp? or is it just clay that makes porcelain well porcelain? The other is what is the minimum cone temp to be marked as food safe? Thanks again

@SweetTea-Stephens 3 года назад

Can you do a video about using witness’s in testing temp for new/new used kilns??!!

@megandixon3058 4 года назад

VERY HELPFUL! I'm getting ready to purchase my first kiln....... Any suggestions??

@chrishuber2768 4 года назад

Skutt and L&L are big brands in the US. I own a small Evenheat which I've been super happy with. Bigger issue is making sure the kiln will get hot enough for the type of clay you like to work with and making sure you have the power at your house for the kiln. You may need to hire an electrician to run power for you, since almost all kilns draw more power than a standard plug can provide.

@karenryker5740 4 года назад

Oops clay type matters low fire clays fire at 04 bisque but fire 05 06 for glaze. You use stoneware which is like you said. Porcelain to hot fire. The differences are the end product. Slip cast clays go low usually and are a little softer than stoneware. Meaning they can chip and break easier than stoneware.

@annschroeder8088 4 года назад

Omg I really hope she didn't fire at cone 6 either! eek

@christinehostetler8153 4 года назад

Did changing your bisque fire from 06 to 04 make any difference to the overall piece and/or glazing process other than fixing the pinhole issue?

@ozzig.2667 4 года назад

Hello from Chile, very nice video!

@patm8941 4 года назад

Thank U! 🤗

@mtnflwr 4 года назад

If you are doing BASICS..... it would be cool to have one related to the information on clay boxes and glazes...... related to your CONE BASICS..... it was a good segway, now into >>>>. 1. clay body. you buy one that says 06-04 on the box, what temp should the bisque be at? the glazing? if the clay box says 06-05, that means you cannot use any glazes on it that are higher than 05? .....do you see where I am going with this?

@RegineAteliers 4 года назад

Talk about low fire & high fire glazes. Also "fit" of clay & glaze. Crazing is a HUGE issue because of fit. Thank you.

@nakatsukuma86 4 года назад

What is the lense you normally use for videos??? Is it wide lense? Looks very cool 😎

@joshs5313 3 года назад

How about a video on the different cones of clay. Like a cone 06 clay vs a cone 6 clay. And what that means for firing.

@louischinappi3526 3 года назад

Your videos are great

@chelseaneff5803 4 года назад

I have a question please! I am working on creating bonsai pots and I’m confused about firing them. Most bonsai pots are made from cone 10 clay bodies and stoneware to ensure they are vitrified and wont crack during freezes. So with a cone 10 clay body, to get it vitrified, I should fire to a cone 10? If the pieces are going to be natural, unglazed, do they technically need a bisque firing or can they go all the way to cone 10 once? I am very new to kilns so any information would be helpful, thank you!

@gsmckee00740 4 года назад

I would also like to see a video on this topic.

@phburdett 19 дней назад

Hi I watched this wanting to learn how to use witness cones to calibrate my new electric kiln. It has the latest greatest touch screen computer, but wanted to make sure I didn’t have to calibrate it. So can you please explain how to calibrate an electric kiln using witness cones?😊

@britnielevi110 4 года назад

What was the cartwheel for... 😂

@cbroom2007 4 года назад

This really really helped me. Thank you so much!

@emmav5005 4 года назад

I really like your videos! Maybe U can do a video about tools?

@normahernandezpride7839 3 года назад

that's truth about that it's freezer around oct 11, 2019 ..... up north of u .... I'm from Crookston Minnesota nearby Fargo and Grand Fork North Dakota

@dogsbodycaninemassage4452 4 года назад

Good video thanks. How long can you leave pieces that have been bisque fired before you glaze them and fire them again? Sunny and 34' in Melbourne, Australia today :)

@MmmmmmCoffee 4 года назад

Dogsbody Canine Massage and then, because it is Melbourne, it will be back to 17 on the weekend.

@dogsbodycaninemassage4452 4 года назад

@@MmmmmmCoffee yes indeedy 😄

@missyh8514 4 года назад

Is it important to use witness cones on each shelf/level? Do you put one lower, one temperature, and One higher? How exactly does that work? Are they different cones than what goes in the cone setter? If you have a cone setter is there really a need for witness cones?

@benpatterson4452 4 года назад

You don't *Have to* put cones on each level, but many potters do, to ensure that each area of the kiln is reaching the correct temperature. This is especially helpful, if you have glazes that are not turning out, because you can figure out if you have cold or hot spots. In regards to other cones, it is common practice, especially for those firing, only by cones, to have three or four cones in a pack ( cone pack). The have the cone they are firing to. a cone or two, lower than they are firing (Guide Cone) and one hotter (Guard Cone) . Thos lets the potter know, when the firing id getting close, and whether or not things were over/ under fired.