The cordial as a way of thinking
A cordial is, at its most basic, fruit or flower steeped with sugar until the liquid becomes concentrated enough to keep. Dilute it and you have a drink. Britain has been doing this for centuries, and elderflower — picked in late spring when the hedgerows briefly smell like muscat grapes — remains the most recognisable expression of that tradition. Its flavour is floral without being perfumed, sweet without being cloying, and utterly specific to place and season.
What separates a good cordial from a supermarket squash is that specificity. The best independent makers press or cold-steep their botanicals rather than cooking them hard, which preserves volatile aromatics that heat would destroy. The result has dimension: a top note, a middle, a finish. It behaves more like a wine than a soft drink.
What a shrub actually is
A shrub — also called a drinking vinegar — takes the cordial idea further. Fruit is macerated with sugar, then vinegar is introduced to the syrup. The acid both preserves and transforms: it tempers the sweetness, sharpens the fruit character, and adds something beneath the flavour that makes you want another sip. That quality is sometimes described as brightness; what it actually does is make your mouth water.
The technique is old larder craft, the kind that made sense before refrigeration, when preserving the summer's harvest was a practical necessity. Shrubs could sit in a cool pantry for months. Mixed with cold water, they made a refreshing drink; added to something stronger, they had the same effect as a squeeze of lemon in a cocktail — structure and lift.
They fell out of fashion as convenience foods took over, which makes their revival feel like more than trend-chasing. There is a real gap they fill. Anyone who has tried to drink something interesting without alcohol at a long dinner will understand immediately what a well-made shrub offers that sparkling water and supermarket elderflower do not.
The vinegar question
The vinegar matters enormously, and this is where makers diverge. Apple cider vinegar — raw, unfiltered, slightly murky — has a softness that suits stone fruits and berries. White wine vinegar is cleaner and sharper, better suited to lighter botanicals. A few producers use aged or unusual vinegars to add further complexity. The ratio of sugar to acid varies too, shifting the drink's character from something that reads almost like a cordial to something bracingly tart.
None of this is regulated or standardised, which is partly what makes the category interesting and partly what makes buying one for the first time feel like a small act of faith. The label rarely tells you enough. What it can tell you: look for producers listing their vinegar type and fruit sourcing, and be cautious of anything where sweetener appears before fruit in the ingredients.
How they are drunk
The most straightforward approach is the simplest: a generous measure of shrub over ice, topped with still or sparkling water. The ratio is flexible — a shrub rewards being tasted at different dilutions until you find what suits you. Some are so rounded they can be sipped short, almost like a cordial concentrate.
Shrubs have attracted serious interest from bartenders working in the no- and low-alcohol space, precisely because they bring what most soft drinks cannot: acidity, depth, and something that genuinely changes as you drink it. A tart berry shrub alongside something fatty — a good cheese plate, a charcuterie board — behaves the way a glass of something acidic would, cutting through and refreshing the palate. Cordials, by contrast, tend to suit lighter contexts: afternoon gatherings, garden drinks, anything where sweetness is welcome rather than disruptive.
Finding the good ones
Britain's independent drinks makers have taken both traditions seriously, and quality at the better end is genuinely high. Small-batch cordial makers still tied to seasonal picking windows, and shrub producers using single-variety British fruit, exist in number — farmers' markets remain one of the best places to taste before buying. Producers who sell face to face tend to be the ones most willing to explain what went into the bottle.
Buying online is increasingly viable too, particularly for shrubs, where producers who care about vinegar sourcing and fruit provenance tend to say so clearly. The category is small enough that word of mouth still works — if you find a maker you trust, ask what else they would recommend.
