Skip to main content

Raku day in June

I've had a new batch of work sitting around in the studio waiting to get fired, so at long last I found time to fire up the kiln.  Yesterday was probably the hottest day of the year so far.... maybe not such a great idea after all!

The hot weather does seem to play a part with the cooling process with copper matte slips. On a really hot day, pots  don't cool down as fast during the  reduction, and that can affect the spread of colour development.

Yesterday, I let the work  cool under a sealed tin for at least another 10-15 minutes. You can "feel" the heat coming off the top of the tin- so that's how I gauge whether they're  ready or not. On a cold day- reduction takes on average- 15 minutes ( 1 x10 - then 1 x 5)- yesterday the pots were getting 25 minutes in total. (1x10, 1x10, 1x5) Each reduction is punctuated by a "burp"- that is lifting the tin to allow in air and re-oxidation.

There were some fair to good results- hoping for even better in tomorrow's batch!


  1. Great job, when do you burp them in the process?

  2. usually i leave it 10 minutes under the reduction bin- then another 10- then 5- so about 25 minutes of reduction punctuated by "burping!" Of course it depends on the size of the pot in relation to the smoking bin. There has to be a relationship- in that the bin to pot/ is not too big or small.

  3. Your copper mat is absolutely spectacular!


Post a Comment


Popular posts from this blog

Some more Crater glaze test results

I've been blathering on about Crater and Lava Glaze recipes here and on Facebook too. I suddenly "got the bug" as well as a commission- (more on this later) so hence the rather manic activity testing out glazes and destroying kiln shelves in the process with runny, bubbling glazes.

I tested 2 recipes- after first trying the usual recipes from the internet and in various books. As I suspected - few of them gave satisfactory results- either it was "pilot error" or the glaze authors just happen to neglect to tell you that vital missing  ingredient, kiln temperature or soak time etc! (Know the type of thing?)

Anyway I resorted to testing 2 standard glaze recipes which I've had for years. A turquoise matte and a Lucy Rie white stoneware. The jury is still out on the turquoise variant- but the white is rather nice. A little suggestion from Potter Jan Lewin Cadogan
put me right by suggesting to mix the glaze …

Wobbly bowls

18 years a "potter" and only now can I really say that I can make a great,wobbly rimmed tea bowl!
They're rather fun to do and are achieved by pinching up clay between thumb and forefinger on three sides, then throwing on  and using the edge of a rib to incise patterns in the wet clay. Turning is a bit of a bugger afterwards, but they're getting there...

New work at Galleries just in!

Lots of new pots just arrived at Builth Wells at Erwood  Station Gallery. Also new stock just in at Sota Gallery in Witney.
Goodbye little pots!