Why it works: Potato and ginger work together. They rank in the top 12% of all ingredient pairs, and cooks put them together in 992 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Yeast and Bread
Ingredients
Directions
Prepare
Peel and boil the potatoes in 3 quarts of water with the hops in a muslin bag until soft.
Pour the hot water over 1 pint of flour in a crock.
Squeeze the hops to extract their strength, then mash the potatoes.
Add 1 quart of cold water to the mashed potatoes and strain through a colander into the crock.
Ferment and store
Stir in ½ cup of coarse sea salt and 1 cup of sugar, along with 1 tablespoon of ginger.
Let the mixture stand for 2 days until fermentation stops and it settles.
Transfer to a jug, cork tightly, and store in a cool place.
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.
-
Potato + gingertop 12% of all pairsSmell alikemoderateCooked together992 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Flour + sugartop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
-
Potato + flourtop 15% of all pairsSmell alikemoderateCooked together5,355 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Flour + gingertop 15% of all pairsSmell alikemoderateCooked together8,564 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Sugar + gingertop 17% of all pairsSmell alikelowCooked together14,054 recipes
Shared aroma: 1-penten-3-one (fish, pungent).
Sugar and ginger barely smell alike, yet cooks put them together in 14,054 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
- Potatoes
- Starch gives the liquid body and supplies material for fermentation.
- Flour
- Adds starch and body to the base that the fermentation works on.
- Hops
- Contribute bitterness and aroma that balance the sweetness of the sugar.
- Sugar
- Feeds the fermentation, which produces gas and alcohol and adds sweetness.
- Ginger
- Adds a warm, spicy aroma to the finished drink.
The step that matters
Let the mixture stand for 2 days until fermentation stops. Fermentation is what gives this drink its character and makes it stable. Yeast and bacteria convert sugars into gas and alcohol, so the liquid should finish fermenting and settle before it is transferred and corked. Corking an active mixture can trap gas and cause the jug to burst.
Swap the potato
How well each one fits the dish's main ingredients (hops, flour, sugar, ginger):
- Mustardfits better
- Arrowrootfits better
- Parsnipfits better
- Potatothe original
Fit is the average pairing score against hops, flour, sugar, ginger. 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 potato bread recipes
You might also like
Cornbread345 recipes
Bread Pudding336 recipes
Milk Bread Rolls242 recipes
Nut Bread109 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.