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 the barley
Put the pearl barley in a clean saucepan and cover with 4 cups of cold water. Bring to a boil.
Pour off the water.
Add 4 cups of cold water again and boil. Pour off when it boils.
Return the barley to the saucepan with 4 cups of cold water and boil for 5 minutes.
Flavour and serve
In a jug, combine the lemon juice, half the lemon rind, and sugar.
Strain the barley water into the jug.
Use when cold.
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.
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Barley + lemontop 13% of all pairsSmell alikemoderateCooked together484 recipes
Shared aroma: 3-hexenal (apple, fruity).
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Lemon + sugartop 18% of all pairsSmell alikelowCooked together53,532 recipes
Shared aroma: 2-nonenal (fatty, green).
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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
- Its starch releases into the water, giving the drink its body and slight thickness.
- Lemon
- Its juice adds acidity and brightness, while the rind adds aromatic citrus oil.
- Sugar
- Adds sweetness to balance the lemon's acidity.
The step that matters
Pour off the water after the first boil. The first boil rinses away surface dust and impurities from the barley, so the drink tastes clean rather than gritty or earthy.
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.
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