The project with Triangle Bakehouse and the continued interest linked to making using local, hand-dug, hand-sourced materials has brought me back to my most local source of clay from a woodland near Ockeridge, Worcestershire.
The clay fires best to 1100 degrees C in an oxidising kiln, and takes a very simple Emmanuel Cooper inspired glaze using a high percentage of the clay (sieved through a 100 sieve) mixed with calcium borate frit (which is now almost impossible to get hold of – so I am slowly working through my last supplies and experimenting with possible alternatives).
The colours achieved are anything from clear, to blue/grey chun – or green/blue/cream chun colours. I sometimes add a small dip into a very dilute cobalt glaze to break the glaze on the rim – which also can lead to a hare’s-fur effect on the inside of bowls. The results (mugs / bowls etc.), inspired by my connection with Triangle Bakehouse, Ripponden, will be sold at fairs here near Worcester and in Ripponden over November 2022.
As part of the Making Histories project / exhibition at Leamington Spa Art Gallery and Museum, I have collected clays from various parts of Warwickshire, both for use clay bodies for throwing (forms inspired by Roman Mortaria), and for glaze making. By good fortune – the Mercian Mudstone clays I was given permission to dig up near Mancetter in North Warwickshire created a beautiful blue / grey creamy chun glaze at earthenware temperatures – when combined with calcium borate frit (following a classic Emmanuel Cooper glaze recipe – 35% clay with 65% CBF… I did try other percentages – but this one works best!).
I’m so delighted that the project linking my investigations into local clay sources, place and local function to Bruichladdich’s commitment to the concept of terroir, has finally gone live – through their posts about the project on Instagram and Twitter, and on their web-site. I want to thank Jane, Ailsa and Kate for their incredible support and encouragement. It is always a strange process – coming up with a new idea, that might appear ‘bonkers’ to some (I think that’s what one person called it), and then pushing through that scepticism and continuing to share it with other people…. When someone actually gets what you are on about, and gives you encouragement – that is such a vital thing for any maker. It’s not so much permission, more keeping the flame lit inside your imagination, pushing you further, to ask more questions, to respond to your curiosity….
When I had to find another clay source, all my initial glaze making experiments with the Foreland Estate clay were redundant. I had to start again. The new clays from Octomore Farm all warp and pinhole at my usual stoneware firing temperatures (1260 degrees C), and so I had to experiment with earthenware firings and glazes, and lower temperature stoneware firings (at 1200 degrees C). And of course these required a completely new approach in terms of glaze making.
Originally, when I found that the Octomore Farm clays would not fire high enough for using the usual three key ingredients – a rock dust, ash (as a flux) and some clay, I thought I was flummoxed. However, after much research in many glaze books, I found that if I gave myself permission to use a small percentage of frit (a compound used by potters to lower the temperature for the fluxing of glazes), added to the three key ingredients above, then this unlocked new doors for me, and the experimentation could continue……
Thanks to Kate Hannett for use of her pictures here….
Kate Hannett’s tiled mosaic of photos
Aubergine glaze with Octomore Farm clay cuach – this glaze uses a metamorphic sandstone rock dust from Granny’s Rock, near Machir Bay, taken from dust excavated by rabbits at the bottom of the cliff face. Courtesy of Kate Hannett
Well of the True Water clay cuach, with home made earthenware glaze
In previous posts, I described the hunt for clay on Islay. I found clay on Foreland Estate, after finding information about the nineteenth century brick and tile works there, on the excellent Scottish Brick History website. However, sadly the Estate declined my request to dig anything more than the first sample there, and I was left with a challenge – to find more clay, or give up!
Here I have several key people to thank. Firstly, the wonderful Danny Mather, quarryman at Ballygrant Quarry and digger man extraordinaire. Danny had been incredibly helpful when I first went over to Islay, helping me source limestone dust, peat and wood (for ash in glaze making)… but had also said he might be able to help me find more clay. Second, Ailsa Hayes at Bruichladdich Distillery. Without her infectious enthusiasm for this project and all of her work, I would not have had the sense that this project was worth pursuing – worth going out on limb for…. and worth a second trip to find more clay. Both Danny and Ailsa led me to the final person I want to thank, the incredibly generous and inspiring James Brown, farmer at Octomore Farm, provider of well-water and barley for Bruichladdich and now, giving me permission to dig some clay from various locations on his land. Huge thanks to all of them!
The clay I am now using for the cuachan comes from three locations on James’s farm. Two sites on the hill, up above Port Charlotte, and one near the Well of the True Water….. At present, the digging sites are very small, with shavings of clay taken from ditch edges, foundations and one small test pit. If more clay is to be dug in any quantity, we are thinking we might create a small wildlife pond from this small excavation. The local landscape and wildlife are of paramount importance to all of us……
Octomore Farm – hillside near clay source
Well of the True Water, Octomore Farm
Rock strata at Granny’s Rock, Machir Bay… source of rock dust for glaze making
It’s been a while, far too long since I have updated this blog. I’m probably only slightly better at posting pictures on Instagram ( @brakspearceramics ), and need to be more regular in my postings here. I become very obsessed by what’s going on in the workshop; all the different clays I am working with (across several projects – Islay, Leamington Spa, Clee Hill again), and glaze ingredients. Apologies for this. But now there is important news to share – which will follow over the next few posts.
In previous posts, I was tending towards naming my whisky tumblers craggan – following my archaeological investigations on-line. However, I have been reliably informed that this is not really an appropriate term to use – craggan generally being larger and more jar like. And so….. as I prepared for the next, important stage in following up this project, and the enthusiasm coming from the wonderful team at Bruichladdich Distillery, I decided to pursue which Scots Gaelic word(s) would be right for these tumblers.
I would like to thanks the staff at Islay Gaelic Centre, who helped me here. They informed me that a small cup, would be a cuach (cuachan in the plural). And from that day forth – that’s what we have calling the whisky tumblers I have been making. I feel that is very important to choose the right word for these pieces, given how much attention I like to put on building a sense of place. And on this point – I have another apology to make…. In many previous posts, I have been using the spelling – whiskey – the Irish / US spelling for the mercurial dram…. I should, of course have been using the correct Scottish spelling – whisky, for the water-of-life or Uisce Beatha. I’ll be sure to get this right henceforth.