Two mills, two different results
A stone mill crushes the entire wheat berry between two revolving stones — germ, bran and starchy endosperm together in a single pass. The oils in the germ, which account for much of a flour's depth and slight nuttiness, stay mixed through the whole mass. A roller mill does the opposite: it strips the grain apart in stages, sifting out the bran and germ to produce a shelf-stable white flour that keeps well precisely because those volatile oils have been removed.
Stoneground flour goes stale faster because of those oils — worth knowing before you stock up. It also behaves differently in a dough, absorbing water more slowly and developing a texture many bakers describe as more open and flavoursome than roller-milled equivalents.
The grains that have come back into focus
Britain's small-mill revival has run alongside renewed interest in the grains themselves. Spelt is probably the most familiar: an ancient relative of modern wheat with a husk tough enough to protect the grain without chemical intervention. Its gluten structure differs from common wheat — not gluten-free, but often better tolerated by people who find heavily processed wheat unsettling, though the reasons aren't fully settled science.
Emmer is older still, one of the first grains domesticated in the Fertile Crescent and grown in Britain during the Bronze Age. It has a pronounced, almost earthy flavour that comes through clearly in a loaf given a long, slow fermentation. Einkorn, the most ancient of the three, is lower-yielding and harder to grow commercially, which is why it remained scarce even as spelt became widely available. Its flour is notably golden in colour, with a richness some describe as buttery.
Then there are the old landrace wheats — varieties that evolved over centuries in specific British soils and climates rather than being bred for uniformity and yield. These lack the name recognition of spelt, but they are what Britain's fields grew before twentieth-century plant breeding narrowed the genetic range. Several small mills now work directly with farms growing these varieties, sometimes on a field-by-field basis.
Why small mills matter to flavour
The revival of small-scale milling in Britain is not purely about nostalgia. Stone mills run cooler than high-speed industrial rollers, and lower heat during milling is widely believed to preserve more delicate aromatic compounds — though the full science is still being worked out. What is not disputed is that short supply chains between farm, mill and baker allow for traceability that commodity flour cannot easily offer. When a flour bag names the variety and the farm, and the miller can speak directly to the farmer, the grain is handled differently from field to shelf.
Many independent millers operate at genuinely small scale — sometimes a single pair of stones, milling to order or in short batches. Flour reaching a baker or home cook may be only weeks from the field, a real contrast with commodity flour that can sit in the distribution chain considerably longer.
How stoneground flour is used
Stoneground wholemeal is the obvious starting point: dense, flavourful, and well-suited to sourdough or yeasted loaves given enough time to develop. It does not have to mean heavy bread. Millers and bakers working with heritage grains often blend them — a proportion of einkorn or emmer alongside a stronger modern wheat — to balance flavour with structure. Stoneground white flour exists too; stone-milling can produce lighter flours when the bran is sifted out afterwards, and the result retains more character than a standard white.
Beyond bread, spelt works well in pastry and biscuits where a slightly crumblier texture is welcome. Emmer lends itself to flatbreads, pasta doughs and anywhere its pronounced flavour has room to show. These are not rules — bakers experiment constantly — but they reflect where these grains have traditionally sat most comfortably.
Finding the right flour
Heritage and stoneground flours are now stocked by a growing number of independent food shops, farm shops and online retailers, and several mills sell direct. Freshness matters: check the milling date where it is given, and store flour somewhere cool and dry. Stoneground wholemeal and heritage varieties keep for a shorter time than supermarket plain flour, so buy in quantities you will use within a few weeks.
The best approach is to try more than one — different varieties, different mills, different soils. The range in flavour across Britain's small millers is considerable, and that variation is the point.
