What the Wiltshire cure actually is
Strip away the regional romance and the Wiltshire cure is, at its simplest, a brine cure. Whole sides of pork are submerged in a salt-and-water solution, sometimes with added sugar, and left there for an extended period — far longer than the quick tumble-and-inject process that produces most supermarket bacon today. That slow immersion is what defines it. Salt penetrates the meat gradually and evenly, without the aggressive pull of a dry rub, which means the finished rasher is noticeably milder and carries a faint natural sweetness that dry-cured bacon rarely achieves.
It is also a whole-carcass method. Traditionally, the pig is cured in sides rather than individual cuts, allowing the brine to work uniformly across belly, back, and hock alike. The resulting bacon and ham come from the same cure, the same immersion, the same tradition.
Calne and the county's bacon history
The town of Calne, in the north of Wiltshire, was once so thoroughly shaped by bacon production that the industry defined the place. Pigs arrived in large numbers — some accounts suggest they were driven on foot from as far as Ireland — and the curing houses that processed them made Calne one of the most significant centres of the British bacon trade for well over a century.
The county's dairy farming tradition meant a reliable supply of whey, a useful by-product for fattening pigs cheaply and efficiently. That agricultural logic created a self-sustaining local industry: milk led to whey, whey fed pigs, pigs became bacon, and the cure that emerged from those curing houses became associated with the county itself. The method followed the industry's scale and demands rather than arriving as inherited folk knowledge.
Calne's dominance eventually faded as the industry consolidated and modernised elsewhere, but the cure it popularised did not disappear. It became a named method, reproduced by producers across Britain who wanted to signal a particular style and provenance.
Wet cure versus dry cure
The difference between the two methods is more than technical. A dry cure — salt and sometimes sugar applied directly to the surface of the meat — draws moisture out aggressively. It concentrates flavour, firms the texture, and typically produces a rasher with a more pronounced, saltier character. Dry-cured bacon also tends to shrink less in the pan because less water has been introduced to the meat.
The Wiltshire cure works the other way. Brine is absorbed as much as it is drawn out, and that absorbed liquid carries its own mild sweetness into the flesh. The result is a rasher that stays tender, colours evenly, and doesn't catch at the edges the way a heavily dry-cured back rasher sometimes can. Whether that makes it better is a matter of preference. But it does make it different in ways that are immediately obvious once you cook the two side by side.
It is also worth noting that modern wet cures — the kind used for mass-market bacon — often involve injecting brine under pressure to accelerate the process dramatically. That is not the Wiltshire cure. The defining characteristic of the traditional method is time and immersion, not speed.
How to find it and eat it well
A number of independent British curers still practise the Wiltshire method, and some label it explicitly on their packaging. Look for producers who specify whole-side immersion and a curing period measured in days rather than hours — that detail, where producers share it, is the clearest signal you are getting the genuine article rather than a brined approximation.
Because the cure is milder, it suits preparations where the bacon is the main event rather than a supporting seasoning. Eaten simply — good bread, a little mustard, a fried egg alongside — the sweetness of the cure comes through in a way it would not if the rasher were buried under stronger flavours. Ham cured by the same method tends to be delicate enough to eat cold in thin slices without any accompaniment, which says something about how restrained the salt levels are compared to more aggressive cures.
It is not a fashionable cure in the way that some heavily smoked or aggressively seasoned modern bacons have become. That relative quietness is, for many people, exactly the point.
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