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Preparation of a Grain Yeast Mash

A mash of rye meal and malt mixed with water and yeast to ferment.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 4 ingredients
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Why it works: Rye and malt work together. They rank in the top 23% of all ingredient pairs, and cooks put them together in 12 recipes. Both carry isoamyl acetate, which smells banana, pear. The science ↓

Preparation of a Grain Yeast Mash

Ingredients

Directions

The book gives no oven temperature. The 150°F (65°C) in the steps was added when the recipe was transcribed, as a starting point.

  1. Measure 1 quart of water into a wooden tub.

  2. Heat the water to 150°F (65°C).

  3. Start stirring the water.

  4. Slowly add 1 pound of finely ground rye meal to prevent lumping.

  5. Add 1 pound of crushed green malt or ground dried malt.

  6. Add a sufficient amount of yeast to initiate fermentation.

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. Rye + malttop 23% of all pairs
    Smell alikelow
    Cooked together12 recipes

    Shared aroma: isoamyl acetate (banana, pear).

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Rye meal
Provides the bulk of the starch that the malt and yeast work on, forming the body of the mash.
Green malt
Supplies enzymes that convert starches in the rye into fermentable sugars.
Yeast
Ferments the sugars into alcohol and carbon dioxide to start fermentation.

The step that matters

Add the rye meal slowly while stirring. Dry meal dropped into water in one go clumps into lumps with dry centres that stay unwetted. Slow addition with stirring spreads the meal evenly so every particle hydrates and the mash mixes uniformly.

“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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