Clay From Under Our Feet

One of the quiet pleasures of British pottery is that the raw material comes from the ground beneath us. Potters working in Devon and Dorset have long drawn on ball clay, prized for its plasticity and strength. Cornish china clay, mined on the granite moors, gave the Staffordshire potteries the white body that made creamware and bone china possible. In East Anglia, red earthenware clays fire to a warm terracotta; across the Midlands, fireclays and marls have been dug for centuries.

Clay is not a neutral ingredient. It decides how the pot throws, how it dries, and what colour it becomes in the kiln. An iron-rich red clay fires to a toasty orange-brown and speckles where iron particles bloom through the glaze. A pale grey stoneware stays cool and neutral, letting the glaze do the talking. Working with a local clay, however modest the deposit, gives a pot a sense of place that no imported body quite matches.

Forms Shaped by the Table

British domestic pottery has always been about use rather than display. The mug, the jug and the bowl are the three shapes that turn up again and again, and each has a long practical tradition behind it.

A well-thrown mug sits comfortably in the hand and holds around 300 to 350 millilitres — a decent mug of tea, not a thimble. Look for a foot ring slightly narrower than the belly, so the pot stands steady without feeling bottom-heavy. The handle should be pulled, not extruded: a pulled handle tapers where it meets the body, thickens slightly at the grip, and often carries a small thumb rest.

Jugs live or die by their pouring lip. A lip cut cleanly and slightly flared will break the stream of liquid rather than let it run down the belly. The neck should be narrow enough to control the pour but wide enough to take a wooden spoon. Bowls, meanwhile, need a curve that suits the food: wide and shallow for pasta, deeper with straighter walls for soup or porridge.

Glazes That Record the Firing

Glaze is where British potters have been most inventive, often out of necessity. Wood ash from the kiln or the hearth, mixed with clay and a little feldspar, produces mottled greens and buttery browns that no factory recipe can quite imitate. Salt glazing, developed in the Rhineland and adopted enthusiastically in England, gives stoneware its characteristic orange-peel texture, achieved by throwing common salt into a red-hot kiln.

• Tenmoku — an iron-rich glaze that breaks from near-black to rust where it runs thin over a rim.
• Celadon — a pale green that depends on reduction firing, where the kiln is starved of oxygen so iron in the glaze turns from brown to jade.
• Slipware — liquid clay trailed, combed or feathered over a red earthenware body, a tradition with deep roots in Devon, Somerset and Staffordshire.
• Crackle and crazing — fine networks of glaze lines that develop over years of use and, in a well-made pot, are purely decorative.

Evidence of the Maker's Hand

Handmade pots carry their own record. You can feel the faint spiral of throwing rings on the inside of a bowl, see where a handle was joined with a thumb pressed into the seam, and find glaze pooled a little thicker in one corner because the pot stood at a slight angle in the kiln. A potter's mark stamped on the base tells you who made it and often where.

None of this is a fault. It is the difference between an object that was replicated and one that was made. A factory mug is identical to the next one off the line; a thrown mug remembers the hands that shaped it, and that memory is what makes people reach for one mug over another every morning.

Why They Stay in Use

Stoneware fired above 1,200°C is vitrified — hard, non-porous and genuinely tough. Earthenware is softer and more porous, which is why traditional redware was glazed inside and out and handled with a little care. Either way, the practical case for handmade pottery is strong: it survives washing up, holds heat well because the walls are thicker than factory china, and can be repaired. A chipped rim can be smoothed with wet-and-dry paper; a crack can be stapled or riveted by a specialist; a broken handle can be reattached.

There is also the matter of inheritance. Most households have at least one pot that came from a grandparent's kitchen — a jug, a mixing bowl, a mug that has outlasted three kettles. Handmade pottery earns that kind of life because it was made to be used, not admired from a shelf.

Choosing and Caring for a Piece

When you pick up a pot, heft it. Weight in the base tells you it will not skitter across the table. Run a finger around the foot ring to check it sits flat, and turn the pot over to see the maker's mark. If it is a mug, put your fingers through the handle and check the balance before you commit. Buy from craft fairs, potters' open studios and small galleries where you can meet the maker and ask about firing temperature and care.

At home, avoid thermal shock: let a hot pot cool before it meets cold water. Crackle glazes and earthenware are best washed by hand, and a little care with the dishwasher will keep a favourite mug going for decades. Treat it as a tool, and it will reward you daily.