Sorrel: traditional uses, how to prepare it, and when to go easy

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Sorrel (Rumex acetosa) is the sharp, lemony green that comes back in the vegetable patch year after year. This page covers what is actually in the leaf, what herbalism and old kitchen tradition make of it, how to turn it into soup, sauce or an infusion tonight — and, just as importantly, who should keep their portions small.

Sorrel at a glance

What it is credited with

• Roman and Egyptian kitchens already treated sorrel as a digestive green, served alongside rich or fatty dishes.
• Medieval tradition valued it as one of the first fresh leaves of the year and credited it with putting right the dullness and sore gums that followed a winter without greenery — what was then called scurvy.
• Herbalism describes the leaf as mildly diuretic and gently laxative, and a light leaf infusion has a long reputation as a spring “clearing” drink.
• Country herbal practice used crushed-leaf poultices on boils and grazes, with a reputation for bringing an abscess to a head.
• Naturopathy points to its vitamin C, folate and magnesium content in the context of ordinary tiredness and the general upkeep of the immune and nervous systems.
• Its potassium is traditionally associated with muscle and nerve function and with normal kidney work.
• The phenolic compounds in the leaf are described in herbal literature as antioxidant.

How to use it

The classic soup

• Take two generous handfuls of washed leaves, stalks pulled off.
• Melt them in a knob of butter over low heat — one to two minutes is enough, they collapse almost at once.
• Add stock and a floury potato, simmer until the potato is soft, then blend.
• Finish off the heat with cream or a beaten egg yolk: the fat tames the acidity.

Sorrel sauce for fish

• A small handful of shredded leaves, stirred into warm cream or crème fraîche.
• Thirty seconds in the pan, a grind of pepper, and it is done.
• Classic with salmon, trout and mackerel; also good with eggs and poultry.

Raw, in small amounts

• Shred three or four young leaves through a green salad as you would a squeeze of lemon.
• Older, bigger leaves get coarse and much sharper — keep those for cooking.

The leaf infusion

• A small handful of fresh leaves, roughly torn, per large teapot of just-boiled water.
• Cover and steep five to ten minutes, then strain.
• Traditionally taken as a short spring course of a cup a day for a week or two, not as a daily habit all year.
• Taste: sour and grassy; a little honey or a mint leaf rounds it off.

The poultice

• Crush a few clean leaves to a rough pulp, or wilt them briefly in hot water.
• Wrap in a clean cloth and lay on the spot for ten to fifteen minutes.
• Use on intact or lightly grazed skin only, and stop if it stings.

Frequently Asked Questions

The one thing to remember: use sorrel the day you pick it, in small cooked portions softened with cream or egg, and keep the infusion to a short seasonal course rather than a daily habit.

Can I eat sorrel every day?

It is best treated as a seasoning green rather than a staple vegetable, because of its oxalic acid content. A few leaves in a sauce or salad several times a week suits most people. Large daily helpings are the thing to avoid, particularly if you are prone to kidney stones or gout.

Why does my sorrel turn grey when cooked?

That colour change is normal — the green pigment breaks down in acid within seconds of hitting the heat. Cooking in cast iron or bare aluminium makes it worse and adds a metallic taste. Use stainless steel or enamel, and cook it as briefly as you can.

How do I make a sorrel infusion?

Tear a small handful of fresh leaves into a large teapot, pour on just-boiled water, cover and steep five to ten minutes, then strain. Herbalism credits it with a mild diuretic and gently laxative action, taken as a cup a day for a week or two in spring. It is sour and grassy, so a little honey helps.

How long does picked sorrel keep?

Barely at all. Fresh leaves last two to three days in an airtight container in the fridge, and are much better used the day they are picked. Once cooked, sorrel will not hold until the next meal, so prepare only what you intend to eat.

Can children eat sorrel?

Small cooked portions in a family soup or sauce are traditional in many kitchens. Because of the oxalic acid, keep children’s helpings modest and do not give them the infusion. If a child has any kidney concern, ask a healthcare professional first.

Gardening guide: how to grow sorrel — and all our sorrel pages.

This information is provided for general interest and reflects the traditional use of plants. It is not a substitute for medical advice. If you are on medication, pregnant, or in any doubt, ask a healthcare professional.