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Drink

Barley Water

Barley water is a simple drink made by boiling pearl barley in water, then straining and optionally sweetening with lemon or sugar.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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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

  1. Wash the pearl barley well with cold water and discard the washings.

  2. Boil the barley with 1½ pints of water in a covered pot for 20 minutes.

Strain and flavor

  1. Strain the mixture.

  2. Sweeten and flavor with lemon peel or lemon juice if desired.

Recipe from a historical cookbook (Internet Archive).

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.

  1. Barley + lemontop 13% of all pairs
    Smell alikemoderate
    Cooked together484 recipes

    Shared aroma: 3-hexenal (apple, fruity).

  2. Lemon + sugartop 18% of all pairs
    Smell alikelow
    Cooked together53,532 recipes

    Shared aroma: 2-nonenal (fatty, green).

  3. Barley + sugartop 21% of all pairs
    Smell alikemoderate
    Cooked 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
Starch from the grain gives the water body and a mild, grainy flavor.
Sugar
Adds sweetness that balances the plain grain taste and any lemon tartness.

The step that matters

Boiling in a covered pot. The lid slows evaporation, so the liquid stays close to 1½ pints while the barley softens and releases its starch and flavor.

Swap the lemon

The recipe marks lemon as optional. How well each one fits the dish's main ingredients (barley, sugar):

  1. Vanillafits better
  2. Figfits better
  3. Raisinfits better
  4. 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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