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I put CHARCOAL in my kiln (testing my Tenmoku gold)
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- เผยแพร่เมื่อ 13 ก.พ. 2019
- My tenmoku gold has been acting up for quite some time ( because i have an older kiln) an until i get a new kiln i have to learn to work with my glazes. this is a attempt to make it work again with the factor of putting a piece of coal in my kiln . at the end of the experiment I don't believe the cold actually did anything or introducing extra carbon into my atmosphere, but I do believe I have found that the glades body simply needs to either be thicker or have less water.
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Only change 1 variable at a time in an experiment Dante!
Yeah I think next time I'm only gonna double dip
@@EarthNationCeramics can't get the answers you seek without proper method! Too much madness not enough method!
No thing of value to add... just want to back up this comment as it’s good science!
@@zaphodb81 SCIENCE!
Haha... that is for rational experiments.
The reason why Timsee told you, “Don't put coal in your kiln,” is because it's very bad for the kiln elements.
Electric elements *do not* like reduction atmospheres! It damages them.
Just this one time shouldn't cause major damage, but *don't do it again* unless you really want to replace your elements.
You should try the tenmuko leaf firing! When the glaze is wet you place a green leaf on the surface and fire it! The gold should collect where the leaf is placed.
Not in an electric kiln. The burning leaf contaminates you bricks and shortens the elements life
That’s CHARCOAL, not coal. Two different things. That’s like calling a porcelain bowl a stone bowl
True, but its still going to change the oxygen levels in the kiln (just not by as much). Also, its manufactured charcoal and that can have real coal in it along with binders and fillers. (I'm not sure that there is anywhere near enough Carbon to make any difference and using a saggar to trap the gas around the pot would be a better option (plus it would mean you can add more coal to one pot than another
Chris Parkin charcoal briquettes are 98% plant based but some (cheap no name brands) will mix in a tiny bit (2~3%) of coal into them to make up for the poor quality. Coal leaves a very noticeable taste that sticks to everything you cook over it, so it’s not used in the US for food products in cooking. Plus coal adds a multitude of other gasses to the party, which would change the outcome of the glaze
@@Tom-yc8jv www.finecooking.com/article/hardwood-charcoal-vs-charcoal-briquettes US-based website would disagree with you on if it's an option in the US, but I'll agree with you on both taste and chemistry. As to this version being 98% plant-based - looking at the amount of unburnt stuff left, I'd say not in this case.
Correct
coal does add other gases ... this is the original "coal gas" produced by destructive distillation, a toxic mix of carbon monoxide and hydrogen, and lesser amounts of other delightful stuff. but the remaining solid is "coke"; hard and very porous and, like charcoal made by heating wood, mostly carbon. the coking process is completed around 600°C, so i imagine that beyond these temperatures the resulting atmosphere would be quite similar. but if we're voting, i vote charcoal over coal
Dante, not sure anybody wrote this already, I have not read through the comments...so my advice for getting back the crystals in temmoku gold is to slowing down the cooling at the end of the firing. this will enhance any glaze that is a crystalline glaze (like Temmoku Gold). I fire my Iron reds with 1.5 hours hold at 950 Celsius and T. Gold comes out perfectly or I should say a bit too much crystals. Randy's red will also be red when doing this.
Big kilns packed tightly cool much slower naturally than small kilns (think of all the mass like the kiln + pots mass, that holds a lot of heat which is given up slowly), especially when that small kiln has old insulation (insulation also gets older and loose insulation properties a bit)
One last note: you have crystals inside your pots as the inner side of the pottery cools slower than the outside.
Sorry I came into this a little late, but if you want to continue testing reduction firing in your kiln, you could put the piece to be tested and the charcoal into a saggar. It the lid was a tight fit, most of the fumes would stay inside the saggar until the glaze matures and fixed. It might cause it to be a little underfired. I think I would also use hardwood charcoal instead of those briquettes. I'm sure the binder holding the briquettes together will release who knows what into the kiln atmosphere with unpredictable results. Just a thought and probably worth what it cost you! 😉 Cool tests though!!
That is charcoal dante, I don't recommend that you put actual coal in there if it starts on fire it will burn with black smoke and might stain your kiln in the process
What I've noticed in my experiments with Rutile blue glazes is that you get more noticeable blues and effects when it's used on top of any glaze that uses red iron oxide.
The addition of the iron glaze just increases the amount of iron available to make the blue. Rutile is yellow iron. I notice that oxidation potters don't tend to use oxides. Try just putting straight iron on it instead of another glaze.
My clay supplier was adamant that I not try reducing with electric elements. Hot fuel-rich gasses can turn it into a flame thrower, it produces a ton of CO2, and it severely shortens the life of the elements. What about tweaking your pit fire bricks into an updraft?
The tea cup looks like snow falling. 😍
Discover ITC213 coatings to save your kiln elements if you continue reduction firing in an electronic kiln. Lots of videos from 8 years ago but not trending now. First saw it in a Beatrice Wood video and thought totally cool.
Dude! Those are gorgeous!
D, is there any chance you can show us what a bowl looks like with only a SINGLE dip of T.G.? I'm unclear as to why you double-dipped those two that you were REALLY pleased with.
I love that you have Ainsley Harriott in there!
He's a dank meme 😂
If you can get a soak at temperature for 10 or 15 mints it might help. It is under fired as it is.
Glad you enjoy testing the coal I am curious myself ☺
I'd expect that the charcoal would burn up at a much lower temperature than when the glaze would benefit from the reduction that it would produce. The charcoal would be burnt away much earlier than the glaze would vitrify.
I know this is an old video, but if anyone is reading this... from the skutt page on maximizing element life. Tip #4 . "Trying to reduce in your kiln will clobber their useful life
and is definitely not recommended"
Oooh boii! The lumos TG/TG lumos combos are beautiful
yea Yoshio is my guru too. try a rabbit fur Tenmoku. Also did you put any frit in it? Frits vary a lot. What is Lumos? Looking for a Gas kiln a little bigger? I have one to sell. 3 owners but never been used.
It looks to me like the thickness of the glaze has changed. Could the new batch after you have moved have more water (a lower density) that what you were using in the past? Re Lumos and T.G Do you have a glaze sprayer? That's an easier way of getting the second coat on without risking the runs (You do need to let it dry between coats, but not as much as dipping - sorry if you already know this)
Two thoughts... your glaze looked super thin to me and try it without the charcoal and keep the glaze thicker.
Do you have a link to the tenmoku gold and lumos recipes? They're beautiful!
My favorite Potter :-).
That was fun!
Thank you for the info, had a good laugh aswell 😊👍
I appreciate this video
Thank you
I have been wondering what adding pure carbon powder to oxidation glazes would do. Anyone tried that?
it was a fun video..
Never hurts to experiment... Or does it?! I'm sure you've heard curiosity killed the cat, LOL! But I really appreciate your experiment and I'm glad your tenmoku gold turned out!
Curiosity killed the cat but satisfaction brought it back.
ignorance killed the cat. curiosity was framed
Lower the temperature of your bisque firing to make your ware more absorbent,then you’ll get a better layer on each pot
The first RR over TG cup is sooo beautiful, how did you even achieve that shape?
Have you done any hand modeling you are a natural
Could be you need to add the coal at a later time in the firing or use a sagar.
I want to learn you glaze, how can I learn pls.
Yayy anither video
Do you also build with slab and not only on wheel?
Can you share the lumos recipe? Thank you 🤗
that be charcoal not coal
(Not trying to be one of thoose people who be like "your wrong I am always right cuz i know everything"Btw)
Take a picture!
is it possible to make matt tenmoku gold? cone 6
If you know charcoal each brick is only 25 degrees, used it in cooking in camping. So in reality you only raised that area 25 degrees.
Temoku under fired, did you say you added extra lithium?..... it's a flux.... lumos mix 50/50 viewer request
This is not beginner stuff, who's he foolen, great channel.
Grog versus pure... I guess I am not fully literate enough to be snobbish yet. haha
Ok ok I wish I could say I didn’t fast forward. Cause omg anticipation killed me
can you use Mod Podge as a glaze for your pottery/ If so can you show how yo put it on please.
Can’t tell if this is a real question but here’s a real answer: mod podge is a glue so that’s only good for collage and paper crafts. Ceramic Glaze is a mix of minerals and silica that turn into glass when fired. If you draw or paint on a mug and want to seal it look for permanent gloss spray, maybe a resin or use the sharpie and oven method. If you want to glaze other items that aren’t going to be washed then you can use resin(uv or 2part) or polyurethane glaze for a good shine and water proofing.
Hey donte how ya been man been too long you still do periscope? Its arkem btw
Yoooooo. No I stopped doing Periscope I mostly on TH-cam and Instagram now
MMMMM.. Charcoal grilled Tenmoku Gold... So you just use the glaze , no dry rub first? Sorry just having a silly day... thanks for this
That you got the gold in the lumose, I saw the red in the bucket. Sorry man.
no control
Anyone else come here to see if they could manufacture diamonds, no? Just me. K
I did lol
3 minute mark... i don't know donte!!!!
I take it back, i love it.
There is no coal in this video; only charcoal. Charcoal is not coal. Very much not coal. Charcoal is a usually man-made substance, crafted from plant material over a slow low oxygen fire. Coal is an ancient mineral rock high in carbon, formed over massive geological time. There is also a giant difference in how hot these two things burn and how easily they light.
You’re hilarious. I didn’t see the demon pot on stilts...
Yeah I took a chance on no stilts, turned out good:)