Why it works: Barley and lemon work together. They rank in the top 13% of all ingredient pairs, and cooks put them together in 484 recipes. Both carry 3-hexenal, which smells apple, fruity. The science ↓
Barley Water
Ingredients
Directions
Prepare
Wash the barley in cold water.
Make the drink
Combine the barley, sugar, and lemon juice in the boiling water.
Keep it hot for three hours.
Strain the mixture, then serve.
Optionally, use orange juice instead of lemon.
Transcribed from a scanned cookbook and modernised for today's kitchens. Where the book gave no heat or time, or said "a moderate oven", the temperatures and times here may be modern equivalents rather than the book's own figures.
Explore the science
The flavor team
The pairs that carry this dish. Each one is judged two ways: how much their aromas overlap, and how often cooks already put them together.
-
Barley + lemontop 13% of all pairsSmell alikemoderateCooked together484 recipes
Shared aroma: 3-hexenal (apple, fruity).
-
Lemon + sugartop 18% of all pairsSmell alikelowCooked together53,532 recipes
Shared aroma: 2-nonenal (fatty, green).
-
Barley + sugartop 21% of all pairsSmell alikemoderateCooked together755 recipes
Shared aroma: beta-damascenone (apple, rose).
Lemon and sugar barely smell alike, yet cooks put them together in 53,532 recipes: they work on texture and structure more than aroma.
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Pearl barley
- Releases starch and grain flavour into the water, giving the drink body and a mild, earthy taste.
- Lemon juice
- Adds acidity that brightens the flavour and balances the sweetness.
- Sugar cubes
- Add sweetness that rounds out the tartness of the lemon.
The step that matters
Keep it hot for three hours. Sustained heat slowly draws starch and flavour out of the barley into the water. Stopping early leaves a thin, weakly flavoured drink, so the barley should stay in the hot liquid for the full time.
Swap the lemon
How well each one fits the dish's main ingredients (barley, sugar):
- Vanillafits better
- Figfits better
- Raisinfits better
- Lemonthe original
Fit is the average pairing score against barley, sugar. Candidates are from the same food group and used in at least 100 recipes.
“What each ingredient does” and “The step that matters” were written by Claude from this recipe’s own method and reviewed in samples by CompKitchen.
More barley water recipes
You might also like
Lemon Whey33 recipes
Lemon Wine31 recipes
Lemon Squash10 recipes
Lemon Essence8 recipesThe free Flavor Lab newsletter: one surprising pairing a week and the molecular reason it works, in 60 seconds. No spam, unsubscribe anytime.
Prefer an account? Create a free account to save pairings and unlock the full chemistry.