Raw berries, leaves and stems are toxic. Cook them.
Cooked syrup is the usual form.
Very high in dark-berry pigment.
Small, very dark, and never eaten raw. Cooked, it becomes the famous winter syrup.
Known to botanists as Sambucus nigra.
Elderberry is the clearest example of a fruit where preparation isn't a matter of taste but of safety. Cooked properly it's a good berry. Eaten raw off the bush it makes people ill.
A traditional winter comfort with real pigment content. Used sensibly — cooked, modestly sweetened, and never in place of medical care — it's a pleasant seasonal habit rather than a remedy.
Chapter 2 of 13
If You Read Nothing Else: What Else to Know
One of the richest common fruits in anthocyanins (the natural colour pigments that make fruit red, purple or blue).
Small trials on cooked elderberry syrup and cold symptoms are promising but limited.
Useful vitamin C and fibre once cooked.
Elder is a large shrub or small tree. In early summer it carries flat white flower heads. By late summer these become heavy, drooping clusters of small purple-black berries, each about the size of a peppercorn.
Family: Adoxaceae (moschatel family).
Chapter 3 of 13
Traditional Uses in Europe and Persia
Persian temperament: Warm & Dry (2nd degree). Read as warming and drying, which is why the cooked berry belonged to winter rather than to hot weather.
Persian and European traditions both class elder as warming and drying, and both used it in winter for coughs and chills. In Persian sources the plant aqti appears mostly as a purgative preparation of bark and leaf — a different, harsher use that's not the same thing as the cooked berry.
Chapter 4 of 13
Traditional Uses in Europe and Persia: In the Household
Winter syrup for coughs and chills, made from cooked berries.
Elderflower cordial for hot, feverish feelings — the flower.
Bark and leaf preparations were purgatives, and aren't used today.
In Europe the elder was a hedgerow tree left standing when others were cut, wrapped in folklore about the spirit that lived in it. Flower cordial in June and berry syrup in September still mark the year in many households.
Chapter 5 of 13
What It Contains
Primary compounds
Quercetin (a plant compound found in onions, apples and tea); sambucus lectins.
Other notable constituents
Minerals: Iron, Potassium, Phosphorus · Antioxidants: Rutin · Fiber: ~7 g per cup of cooked berries
Chapter 6 of 13
What Studies in People Show
What studies in people show
Elderberry extract shortened self-reported upper respiratory symptom duration in small randomised trials.Emerging evidence
Raw Sambucus berries, leaves and stems contain cyanogenic glycosides that cause vomiting and stomach and gut upset.Strong evidence
Chapter 7 of 13
Preparation and Kitchen Use
Strip berries from stems with a fork; green stems carry the most toxin.
Simmer at least 20 minutes, then strain.
In the kitchen: sweeten after cooking; as a cooked syrup, a spoon at a time.
Cooked into jam or jelly, usually with apple for set.
Add cooked berries to apple in a pie or compote.
Buy a made syrup if you're not confident identifying the plant.
Chapter 8 of 13
What It Goes With
Fruit:
Apple
Apple carries the pectin (a soft fibre in fruit that thickens jam) elderberry lacks, so a pie or jelly made with both actually sets.
Honey:
Honey
Stir it in after the pan comes off the heat. Boiled honey loses the aroma you paid for.
Spice:
Cinnamon
A stick simmered in the syrup gives the winter version its familiar smell.
Spice:
Ginger
Fresh ginger sharpens a syrup that can otherwise taste flat and jammy.
Chapter 9 of 13
Who Should Be Careful
General caution:
Red-berried elder (Sambucus racemosa) and dwarf elder (Sambucus ebulus) are different plants and aren't safe to use this way. Do not forage unless you can tell them apart.
General caution:
Concentrated elderberry supplements are far stronger than a kitchen syrup; the two aren't interchangeable.
General caution:
Commercial syrups are often mostly sugar. Read the label.
General caution:
Raw berries, leaves, bark, roots and stems contain cyanide-forming compounds and can cause vomiting and severe stomach upset. Cook the berries and discard everything else.
General caution:
Elderberry isn't a treatment for influenza or COVID-19. If you're unwell with fever, see a doctor.
Chapter 10 of 13
Medicines and Interactions
Medication interaction:
Immune-suppressing medicine — Elderberry is often sold as an immune stimulant. If you take medicine that deliberately dampens your immune system, ask your specialist before using it daily. (moderate concern)
General caution:
Diuretics — Elderberry preparations have a mild diuretic (makes you pass more urine) reputation, so daily use alongside water tablets is worth mentioning to a prescriber. (low concern)
Medication interaction:
Diabetes medicine — Commercial syrups are mostly sugar. That matters more for blood glucose than the berry does. (low concern)
Chapter 11 of 13
Pregnancy, Children and Older Adults
General
Children:
Not for children under one year old, because syrups are usually made with honey.
Pregnancy and breastfeeding
Pregnancy and breastfeeding:
Cooked berries in food amounts aren't a concern. Concentrated supplements are a different thing and have not been studied in pregnancy, so leave them alone and ask your midwife or doctor first.
Children
Children:
No honey-based syrup before the first birthday. Older children take it well, and a cooked spoonful is fine, but it's a comfort measure during a cold and not a medicine.
Older adults
Medication interaction:
A pleasant winter habit that costs nothing in salt or fat. If you're on several prescriptions, mention a daily syrup to your pharmacist, mainly because of the sugar.
Chapter 12 of 13
Through the Year
Spring:
Spring
Nothing to pick. The tree is still in leaf and the cream flower heads have not opened.
Summer:
Summer
The flowers come first, and they are a separate ingredient. Cordial is made now; the fruit is still green and hard.
Autumn:
Autumn
This is the season. The clusters hang heavy and purple-black, and everything you'll use in winter is cooked and bottled in these few weeks.
Winter:
Winter
You are living off the syrup you made. A spoon at a time, usually when someone in the house has a cough.
Chapter 13 of 13
Questions People Ask
Can I eat them raw?
No. Raw elderberries cause vomiting and stomach upset. They must be cooked first.
Does the syrup cure colds?
No. A few small studies suggest slightly milder symptoms, but the evidence is limited and it isn't a cure.
Are the flowers the same thing?
No. Elderflower cordial is made from the cream blossom, a different preparation with different traditional uses.
Is shop syrup safe?
Yes — it's made from cooked berries. The danger is raw fruit, leaves and stems.
