Jamón ibérico, Spain’s iconic ham, is one of the great world foods. At its best, it comes as translucent ruby-purple slivers, so thinly sliced you can see through it to the inscription on the knife.
The thin edge of creamy fat melts on the tongue, mingling with the complex, nutty flavour of the pork: a perfect bite of rich, luscious umami. Spain produces more than 40 million hams a year but while there are some perfectly acceptable jamón serrano, made from white pigs, the ibérico is the real stuff.
Sadly, plenty of sins are committed in its name, and the classification system can be opaque. To be called ibérico, the ham must come from a Black Iberian Pig, or a cross-breed that’s at least 50 per cent ibérico. Within that there are four labels: black, red, green and white, in descending order of prestige.
To qualify for the black label, pata negra (black hoof), the pig must be a pure ibérico breed and fed exclusively on acorns (bellota is acorn in Spanish). Red labels are for more than 50 per cent crossbreeds fed on acorns. The acorns come from holm oaks, which dominate the dehesa, the grazing lands that cover large swathes of western Spain and Portugal.
Green label is a cross-breed fed partly on acorns, and white label is a crossbreed fed no acorns. The grain-fed pigs have a saltier, chewier quality, which some people prefer.
Each pig can eat up to 10kg of acorns per day and needs plenty of exercise. After slaughter they must be cured for up to two years, which helps explain why the ham can seem eye-wateringly expensive. This is meat as it should be: happy pigs raised with care, sold and served in a way that accentuates its quality.
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While you can buy whole hams, and they make a spectacular centrepiece for any kitchen, carving can be difficult for the unpractised. Sliced too thickly, it can lose its subtlety, or worse, too much skin can leave an acrid, fatty flavour on the tongue. It is easier to buy it hand-carved and vacuum packed, then served at room temperature, so the fats are just starting to shine.
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