Tuesday, September 21, 2010

Boil, Little Porridge Pot!

I was reminded of this little line from a childhood story last night as I hovered over a large kettle of boiling water. I was subjecting three pieces of pottery to one of the most brutal tests you can imagine. It's called the Boiling Water/Freezing Water test and it is the acid test for glaze crazing. In a nutshell, you immerse a pot in boiling water for three minutes, remove it and immediately immerse it in ice water. After three minutes in the ice water bath, you quickly drop it back into the boiling water. You repeat this cycle three times. Once finished, you use a dauber and rub black ink or paint into the pot. After a few minutes, you wash the excess ink off and then examine the pot closely to see if any crazing is present.

Any pottery that can withstand this test is probably strong enough to last a long time. Nobody that I know of exposes their dinnerware to this kind of treatment, but the test is intended to duplicate the ravages of time in a hurry.

Last night I was testing the newest version of the white glaze on both the newer clay body and the old local clay. Results were slightly mixed, There was no crazing on the pot made from local clay, and no crazing on most of the pot made from the new clay. Where crazing did appear, it was not surprising. The glaze was too thickly applied in that particular spot and had crawled slightly, making that area prone under any circumstances.

There was no crazing at all on the moss agate test. This despite some crawling in the bottom inside.

All of this is very encouraging. More when I have more time.

Monday, September 20, 2010

That's How it Goes

Ah, those lovely bean pots in the photo to the right. They stand there awaiting their first firing, slowly drying in the warm late-summer air.

Well, they got their first firing a couple weeks ago. Not one of them made it out intact. All but one cracked so badly that they are only good for landfill or plant drainage. The one that was still in one piece had a small crack in the bottom that isn't easily visible and does not go all the way through. Still, I would not sell it as anything but a second and I would never advise using it in the oven. All the same, it makes a nice display piece.

That's the way it goes in this business. Pieces crack even under the most watchful circumstances. You can't take it personally.

The glaze research continues. The first attempt at a craze-free white disappointed but showed that I was moving in the right direction. The first attempt at a craze-free turquoise was upended by my failure to add tin oxide to the batch. Well, I can still check it for crazing, but it looks bizarre!

I am now looking closely at the moss agate red. I have discovered that it likes to be applied very thinly indeed. One coat is all it requires and it is a rich brown color. I'd like it to be more red, and that is the goal of the next test. If I can achieve that, I will be happy. For now, it remains a work in progress.

On the immediate horizon, the plans are simple. I will be focusing on jam jars and coffee mugs and will be turning those out for the holiday gift-giving season. They are the most popular of the Rowantrees line, and make excellent gifts. I hope to have them up on the web site next month.

In addition, I am planning a special limited edition, numbered series of ornament tiles for Christmas. These will be Lowell Hill pieces, not Rowantrees reproductions. They will measure roughly 3 to 3.5 inches square and will have a Dove of Peace done in a stained glass motif on them. I am planning an edition of 250 and they will sell for $20 each.

But I get ahead of myself. There is still a lot of testing to do and the weather is getting, well, downright autumnal. Cold weather is my nemesis and I am struggling to maintain my schedule to stay ahead of things. Tiles I can make in my kitchen and still fire at the pottery, water or no water. So the thrown pieces will be the priority for now.

I'm off and running...

Monday, August 30, 2010

Decisions, Decisions

The insanity of the Blue Hill Fair is upon us. I have a glaze kiln firing starting at 3 am tomorrow morning (thank the powers that be for delay timers). If it comes out looking good, I will fill most if not all of the orders I have on the block and will have a good display for the Fair booth. I managed to inherit the display space that Rowantrees has held for decades, which was a major thing for me. I'll put up a picture of the display when I get it put together.

But about decisions...

You have to make quite a few of them when you start out on a new venture and I am no exception. Let me tell you about one of the decisions I have made.


I have decided to switch to a commercial clay. Rowantrees used the local marine clay throughout its history but that part of the tradition is not practical for me. The clay required a lot of refining to make it useful and that took machinery and time that I will not have. Besides, under the best set of circumstances, the clay often ended up with tiny rocks and other impurities in it that made for a high rate of loss in the firing. The remaining clay that I have been using is full of pebbles and it's unbelievable how many pieces I have lost in firing.

A commercial clay not only has none of these problems, but it is also manufactured for quality control. When you are doing all the jobs in the studio yourself, you have to decide what you can realistically expect of yourself. Mixing and refining clay takes a lot of time - time that I can be doing other things.

I have chosen a red earthenware body and am currently working with it. If throws nicely and is very tough and forgiving. It dries slowly and fires beautifully. It also has a higher temperature range than the local clay, which means I can experiment with increasing the firing temperature at some point in the future. This may increase the durability of the product (which isn't bad now).

There are some issues resulting from this. The glazes I have formulated do not fit the commercial clay. While they work just fine on the local clay, they craze on the new stuff. For those who have not seen it, crazing is a network of tiny cracks in the glaze that tend to show up over time. That's a matter of chemistry and I expect to get it taken care of without too much lf a fuss, but you can never tell. Sheila Varnum has been my mentor in the craft of pottery and says that there is always a problem to solve. If this is a series of mysteries, I'll roll up my sleeves and get on with it.

Fixing a crazing problem means reducing the thermal expansion of a glaze formula. I have a test of the white glaze reformulated with a lower calculated thermal expansion. It's not a drastic reduction, but it may be sufficient.

Why worry? Lots of pottery crazes. In fact, there are potteries that put out products that are purposely crazed as part of the overall decorating scheme. Fine. But those products are either purely decorative and not intended for food service or they have a "liner" glaze over the crazed layer for protection. The problem with leaving a glaze to craze is that bacteria can get a foothold in those tiny cracks. The result can be unpleasant and I have no intention of allowing my customers to get sick from using my product.

Even if pots don't turn into a science project, the crazing can weaken the pot and cause it to fail structurally. The strength of a pot lies not only in the clay matrix but in the fit of the glaze. Clay and glaze must match for maximum strength.

Ok, enough science. How about another decision?

I have intended to make tiles as part of my Lowell hill line of products. While Rowantrees reproductions will be the main focus, they will not be the only product line. I am hoping to get a small manual tile press constructed soon that will allow me to put out an ornament in time for the holiday season. While I don't plan to operate the pottery over the winter (the building has no heat and I can't afford to install any right now), I will make tiles during the cold season. Even when the temperature is below freezing I can still use the kiln to fire tiles that I make at home. With any luck I will have a modest line of tiles for sale in a few short months. Still, there's a lot of work to do to get that happening.

And when (not if) it happens, you will find out about it here. I will write more after the insanity of the Fair is over.

Wednesday, August 11, 2010

Greetings!

You found me! And now it is time to let you in on what has been happening.

I told the story of my entry into the American Arts and Crafts heritage through my time at Rowantrees Pottery. Now it is time for me to take a new step.

While it remains open as a business, Rowantrees is not producing ware. In her speech at the book signing on July 31, Sheila Varnum announced that negotiations were underway with "a young man who used to work for me." to produce Rowantrees reproductions.

Well, that "young man" is me. I am 51 years old, but it never fails. Someone will always call you young no matter your age.

In his book Dune Frank Herbert noted that a beginning is a very delicate time. That is why information has to be carefully managed. That is why I have been so circumspect in my earlier posts.

We are at a beginning moment. While Rowantrees is not out of business, it is no longer producing ware. That is where I come in.

I have started a new business called Lowell Hill Pottery, named for the hill on which I live in Penobscot. Lowell Hill Pottery is currently in the process of negotiating to become the sole authorized maker of Rowantrees reproductions. That means that the beauty and grace of Rowantrees Pottery will again be available.

The time line is not definite as I am playing a few things by ear for the moment, but as things develop, I will keep you posted.

I know this much; I will not be in operation during the winter months. The building is very old and has no heating system. I am not able to put a heating system in at this point, and since little pottery is purchased while there is snow onthe ground, there is little point in producing it.

That does not mean that orders can not be taken! Please feel free to contact me through this blog or via my (albeit very young and rough) Lowell Hill Pottery web site. As products become available, they will show up there.

Here is hoping for a very bright future for Lowell Hill Pottery and those who have always loved Rowantrees.

Thursday, July 1, 2010

A New Start

It's almost like being called home. Not in the religious sense, but in that very real world way we find ourselves gravitating to what we know. I have been making my living as a paramedic and manager of Peninsula Ambulance in Blue Hill. I have enjoyed that career and still find the work rewarding.

Given what I said about a career in medicine in the first part of my story, it's more than a little ironic as well.

But I was always happiest with mud on my hands. And regardless of any other choices I made or the reasons for them, I knew I wanted to return to pottery. People in emergency medical services don't make the sort of living that allows a leisurely retirement. For that matter, very few do. I began thinking about a retirement job that would suit me well and the idea of opening a pottery studio immediately came to mind. After all, if you are going to have to work for the rest of your life, you should be doing something you love.

One person I know refers to this as intentional living. I like the sound of that.

So in 2007, when I got a phone call asking if I would be willing to join in on a project to reformulate the glazes at Rowantrees, I reacted in a predictable manner. I was extremely reluctant.

Change. You dream about it and then get all crampy when it presents itself.

I gave it a lot of thought and picked up my phone. Yes, I would do the research and see if I could reformulate the glazes. I was nervous about that, but I had done a lot of work on this very project about 18 years before while working at Rowantrees. That gave me a good base to start from. And believe it or not, I had saved all my notes. Call it prophetic, but I was actually prepared.

To back up just a bit, I should point out that the original glazes used at Rowantrees were formulated with lead. They were very beautiful and unique glazes that stood up well. And I'll share another little tidbit with you; I always felt they were safe to use. To this day, I have many pieces of Rowantrees in my kitchen and I continue to use it.

But the problem with lead is more than its toxicity and the need to keep it food safe. Science on the issue has changed over the last couple of decades. What was once considered safe is not any longer. Changes in federal standards caused Rowantrees to issue a recall on their products a few years ago, but few if any customers decided to return their pottery.

You can't buy loyalty like that. It is earned over many years, and Rowantrees had earned it.

But laws are laws. And eventually, it became illegal to purchase lead. Even ceramic stains and commercial glazes containing lead disappeared. I guess we can call that progress, but a lot of beauty has vanished.

So the glazes needed to be reformulated and I stepped up to the plate.

The best replacement for lead is boron. It's non-toxic and not only helps a glaze to melt, but it also forms glass. It has it's own properties, limitations and advantages, but it is a radical change in the chemistry of a glaze. Copper, normally used to produce shades of green in a glaze, tends toward blue with boron. Surface textures that are glassy smooth with lead are far more difficult to achieve. Firing can take considerably longer with boronated glazes.

But if pottery is nothing else, it is a constant challenge. You are always solving a problem or puzzling out a poser of one sort or another. This keeps a brain active and young, I think.

The process was slow, and in the midst of it, I began to think seriously about taking over the Rowantrees business. I went as far as to talk with the bank and a counselor at the Maine Small Business Development Center. While this particular idea never got off the ground, it gave me another.

But I'm getting ahead of myself. What about the glazes?

Well, most of them remain a work in progress. But not all of them. Two of the most popular colors are reformulated and almost indistinguishable from the original. These are the Heather Blue and White glazes. Here is a picture of a Rowantrees coffee cup and saucer glazed with the original lead glazes:


And here is the reformulated, lead-free version:


Of course, a lot can affect the exact color; thickness of application, amount of overlap, firing time, even the water used to make the glaze. But variations in color and size are the hallmark of hand crafted items. They show the hand at work behind the object and remind us not only of the endless variation in nature, but in ourselves. That is what keeps things new and vibrant.

I will post more pictures of the glaze project as the reformulations progress.

And soon, I will tell you why all of this matters!

Saturday, June 26, 2010

Finding My Way - Part 3

The Christmas vacation of 1981 could best be described as magical. I headed to Blue Hill for my apprenticeship at Rowantrees having no idea in the world what was going to happen, but fully receptive to whatever came.

New England - especially coastal New England - is a study in contrasts. You can find everything from rustic nothingness to sprawling cities along the water. Once in the rural areas, though, you find small villages interspersed with dense tree growth and fields that go on for what seem forever.

Oh, and blueberry fields. Don't forget those.

But the one reliable symbol of a town along the Maine coast always seems to be the white church steeple. In most cases, it's the first indication you have that you are even close to a town. That was and remains the case with Blue Hill. The Blue Hill Congregational Church steeple is one of the first things you will see as you enter the town. SO when I saw that steeple, I knew something big was going to happen.

I knocked on the front door of Sheila's home and waited. Before long, I found myself face to face (in a manner of speaking) with one of the strangest dogs I have ever seen. He appeared to be a dachshund, but he was huge for that breed. He was also entirely black. He barked me a greeting in that dachshund sort of way that says, "I'm happy to meet you," and, "Don't even think of messing with me or mine," all at the same time. While I was still taking this in, Sheila appeared at the door and introduced us. The dog's name was Smokey. "He's not exactly a pure bred dachle, is he?" I said. She allowed that I was correct and that his parentage included a black lab. To this day I have puzzled that one out and never quite managed to wrap my head around it, but Smokey would not be the last of that mix I would meet. Sheila called him a dhachador.

I was given a choice of things to do once I was settled in, and I chose to go straight to the pottery. I could decide for myself what I wanted to throw and spend all the time I wanted doing so. Sheila would then look my work over and comment. Just what I was hoping for.

But there was more.

Sheila told me that her two current potters were leaving and she would be in need of a replacement. If I liked it there and could throw well, she would hire me.

Call it serendipity, call it synchronicity, call it anything you want. hours would go by before my feet would touch the ground again.

I spent most of my time in the pottery during the day and into the evening. With the exception of a trip to Connecticut to visit with family over the holiday itself, I remained in Blue Hill until the end of the Christmas holiday when I had to return to my kitchen job. Ont he day I arrived back at Kents Hill School, I was going to give my two weeks notice. Sheila had hired me.

Synchronicity has a darker side. I reported for work in the kitchen only to be told that I had been let go and no longer had a job there. Huh. I won't go into that long story here, but it ended well for me. I turned my attention to my future as a potter.

Sheila made a prediction the day I started work that she would put about three years into me before I would be an accomplished production potter. I was horrified at that prospect, but she was right. There is a big difference between knowing how to throw and being proficient at it. Just because you can make a plate does not mean your product will keep the peas from rolling into the gravy. Hey, I like it that way, but a lot of people don't.

I never envied Sheila the role she had to play - introducing a 21 year old to life and reality in the real world - but she did it with aplomb and no small amount of patience.

I worked at Rowantrees for just over eight years, leaving in 1990 when economic forces made it too difficult to keep me on over the winter. I went to work for Peninsula Ambulance where I remain a full-time manager to this day. I can't say it's a bad gig; in fact, I find it a rewarding profession. But I was always happiest at Rowantrees and always hoped I could find a way back there.

Then came the phone call in 2007.

Friday, June 25, 2010

Following the Brick Path

I'll get back to my story in the next post. For now, I have some fantastic news!



Rowantrees Pottery and Quail Creek Editions are pleased to announce the publication of Following the Brick Path, the Story of Rowantrees Pottery. Written by Andrew Phelan, this lavishly illustrated 228 page book tells the endearing and fascinating story of the 75 year history of a pottery whose wares are collected, used and cherished by thousands of people worldwide.

The book will be formally released in a book signing ceremony at the Blue Hill Public Library. Sheila Varnum, the last owner of Rowantrees Pottery and the author will both be present to sign copies, and the signing will take place at the Library on Saturday, July 31, 2010 at 1 PM.

Following the Brick Path tells the story of Rowantrees from its beginning in 1934 when Adelaide Pearson had a kiln constructed at her Blue Hill home to fire the wares of students enrolled in her summer art classes. From those humble beginnings the kiln evolved and grew as its wares achieved attention and renown both nationally and eventually internationally. Its wares are widely used and beloved by many, and are prized collectors items. Included in this book are many fascinating details about the people and events that shaped the pottery over the years. Pearson, the founder was a Boston-born world traveler and social reformer who made Blue Hill her home in the mid 1920's. She was an accomplished photographer and filmmaker as well as an author and collector. Included in the book are details of the pivotal trip Pearson and her partner Laura Paddock made in 1938-39 when they went around the world from England to India, then French Indochina, Japan, and China, researching pottery making. It was on this trip that they met with Gandhi who encouraged the development of the pottery as a full-fledged business.

Also included in the book are fascinating details and samples of correspondence with America House, a pioneering crafts marketing initiative of Eileen O. Webb who also went on to establish The School for American Craftsmen, the magazine, Craft Horizons (now American Crafts) and American Craft museum. The story of the near demise of Rowantrees in the mid-1970's following Paddock's growing infirmities, and its heartwarming rescue by Sheila Varnum are also told in the book.

Filled with historic photographs and reproductions of correspondence as well as sale brochures and extensive folios of its wares, the book will delight those interested in the history of Blue Hill, the history of cultural institutions of the Maine Coast as well as those interested in the history of ceramics.

Dr. Phelan, a retired professor of art who held various positions at the University of Oklahoma, in Norman, Oklahoma and at the Pratt institute in Brooklyn, NY has a personal connection to the pottery. His father, Linn L. Phelan was the first potter hired by Pearson and Paddock in 1937, as they began the process of expanding and developing the pottery beyond its modest beginnings.

Further information about the book signing can be obtained by contacting Brook at the Blue Hill Public Library, (207) 374-5515.

Additional information about Following the Brick Path is available from the publisher, Quail Creek Editions, 1811 Quail Creek Drive, Norman, OK 73026. The book is priced at $45, with a pre-publication price of $35 (plus shipping) if ordered before July 15, 2010.