Why it works: Grape and lemon are a kitchen classic. They rank in the top 14% of all ingredient pairs, and cooks put them together in 2,412 recipes. Both carry 3-hexenal, which smells apple, fruity. The science ↓
Unfermented Grape-juice
Ingredients
Directions
Make the juice
Mash the grapes and cook them in 3 cups of water.
Strain the mixture.
Add the skins and seeds to 3 more cups of water. Cook the mixture again.
Strain the mixture again.
Add 2 cups of sugar to the strained juice. Boil the juice for 5 minutes.
Skim the surface.
Bottle the hot juice in air-tight jars.
Serve
Add sugar to the juice for serving.
Add a little lemon juice or thin slices of lemon to the juice.
Fill glasses half full of cracked ice.
Pour the grape juice into the glasses.
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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Grape + lemontop 14% of all pairsSmell alikemoderateCooked together2,412 recipes
Shared aroma: 3-hexenal (apple, fruity).
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Sugar + lemontop 18% of all pairsSmell alikelowCooked together53,532 recipes
Shared aroma: 2-nonenal (fatty, green).
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Grape + sugartop 23% of all pairsSmell alikelowCooked together7,490 recipes
Shared aroma: beta-damascenone (apple, rose).
Sugar and lemon 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
- Concord grapes
- Provide the main flavor, color, and juice for the drink.
- Sugar
- Adds sweetness and balances the tartness of the grape juice.
- Lemon juice
- Adds acidity that brightens the flavor of the grape juice.
The step that matters
Bottle the hot juice in air-tight jars. Juice must be kept hot and sealed so it stays free of spoilage microbes; otherwise it can ferment, since yeasts in the air can act on the sugars in the juice.
Swap the grape
How well each one fits the dish's main ingredients (sugar, lemon):
- Orangefits better
- Limefits better
- Vanillafits better
- Grapethe original
Fit is the average pairing score against sugar, lemon. 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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