What Stoneground Really Means

When grain goes between two millstones, the whole kernel goes in and the whole kernel comes out — bran, germ and endosperm ground together into one flour. The stones turn slowly, often at well under 200 revolutions per minute, so the flour barely warms. That gentle pace matters, because the oils in the wheatgerm are volatile and heat is their enemy.

Roller milling works the opposite way. Steel rollers crack the grain and the miller sieves the parts apart, selling bran and germ off separately and leaving a uniform white flour with a very long shelf life. Efficient, certainly. But the flavour is separated out along with the nutrients, and noticeably so once you taste the two side by side.

Stoneground flour is almost always wholemeal, though a miller can sift a little bran back out to produce a "stoneground white" or a light wholemeal. Ask what you are buying; the terms are not regulated quite as tightly as you might hope.

What Bran and Germ Bring to the Crumb

The germ is the embryo of the grain, and it is rich in oils that taste sweet, nutty and faintly toasted. The bran is the outer coat: fibrous, slightly bitter, and full of the minerals that give a loaf its colour. Grind them into the flour and you get a crumb that is creamy rather than grey, with a savoury depth that white flour simply cannot imitate.

You also get character. Stoneground flour varies from sack to sack and from harvest to harvest, because the miller is working with a living crop rather than a standardised commodity. A loaf baked in October will not taste quite like the same recipe baked in March. Some bakers find that maddening. Most of us come to regard it as the whole point.

One trade-off: those germ oils shorten the flour's keeping quality. Buy in quantities you will use within two or three months, store it somewhere cool and dark, and consider the freezer for longer storage.

British Grains Worth Looking For

Our climate suits wheat with moderate protein and good extensibility rather than the blockbuster strength of some imported grain, which is why so many British loaves rely on a blend. Once you start seeking out specific varieties, the differences become obvious in the tin.

• Heritage wheats such as Maris Widgeon, Red Lammas and Little Joss bring a rounder, sweeter, almost biscuity flavour and a soft, close crumb.
• Modern British bread wheats like Crusoe, Skyfall and Mulika give you reliable rise and a cleaner, more neutral taste — excellent for a weekly white loaf with a little wholemeal added.
• Spelt, emmer and einkorn are older species with their own agenda: fragile gluten, fast fermentation, and a distinctly tangy, mineral flavour.
• British-grown rye, including population varieties, is dark, sticky and wonderful in small proportions alongside wheat.

Small watermills and windmills around the country still stonegrind these grains, often within a few miles of where they were grown. Buying from them is the shortest route to a loaf with a sense of place.

How Stoneground Flour Behaves in the Dough

Wholemeal dough is thirstier than white. The bran soaks up water like blotting paper, so expect to add five to ten per cent more liquid than your usual recipe calls for, and do not panic if the first mix looks shaggy. Give it a thirty to sixty minute rest — a simple autolyse — and the bran will soften and the dough will come together almost by itself.

Bran also physically interferes with gluten. Those sharp flakes slice through protein strands as you knead, so the dough feels less extensible and reaches full development more slowly. Be patient, handle it gently, and use a folding technique rather than aggressive kneading.

Fermentation runs faster, too. Wholemeal carries more enzymes and more food for the yeast, so a bulk prove that takes three hours in white flour may be done in two. Watch the dough rather than the clock.

Adjusting Your Everyday Loaf

You do not need to go from nought to one hundred per cent wholemeal overnight. A practical route in:

• Swap 20 to 30 per cent of your white flour for stoneground wholemeal and change nothing else. Notice the colour first, then the flavour.
• Add a little extra water, roughly 10 grams per 100 grams of wholemeal used.
• Shorten your bulk ferment by about a quarter and keep an eye on the dough.
• Bake in a tin for the first few attempts. Wholemeal loaves brown quickly, so drop the oven by 10°C and give them five extra minutes.
• Expect a tighter crumb and slightly less oven spring. That is not failure — it is the grain showing through.

Once you are comfortable, push towards half and half, or try a fully wholemeal tin loaf with a long, cool overnight prove. The flavour deepens further, and the crust takes on a deep, mahogany colour that white loaves rarely achieve.