Nuts
Acorn
Acorns are the nuts of oak trees (Quercus spp.), long harvested as a calorie staple across temperate forests of the Northern Hemisphere rather than as a buttery cocktail snack. Compared with almonds or walnuts they are unusually starchy, with moderate oil and a firm, grainy meat that softens once dried and milled. Most culinary oaks carry bitter tannins, so food traditions leach cracked meats in repeated changes of cold or warm water until the liquor runs clear and the taste turns mild and earthy. After leaching, cooks dry the meats and grind them into meal or flour for breads, porridges, pinole-style cakes, and Korean dotorimuk jelly. White-oak group nuts often need less leaching than red-oak types, which can stay astringent for days if rushed. Good food acorns are heavy for their size, free of weevil holes, and free of mouldy or paint-like smells once shelled. Poor lots rattle hollow, show insect dust, or taste harsh even after a full leach. Dried meal and flour keep far better than damp fresh meats; store cool, dry, and sealed. Label as a specialty wild food where tree-nut rules are unclear, and never treat untested raw acorns as a mild trail mix stand-in.
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A sample of named types with their own origin and culinary profiles.
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Nutrition and pairings
Nutrition
Typical values per 100 g edible portion. Nutrient names open the reference page.
Nutrition Facts
Per 100 g edible portion
Amount per 100 g
- Total Fat 54.8 g
- Saturated Fat 6.82 g
- Trans Fat 0 g
- Monounsaturated Fat 30.1 g
- Polyunsaturated Fat 13.5 g
- Cholesterol 0 mg
- Sodium 5.39 mg
- Salt 0.01 g
- Total Carbohydrate 18.6 g
- Dietary Fibre 8.4 g
- Total Sugars 3.91 g
- Complex / starch 4.88 g
- Protein 18.1 g
- Water 3.84 g
- Energy 579 kcal
- Water 3.84 g
- Carbohydrates 18.6 g
- Sugars 3.91 g
- Monosaccharides 2.74 g
- Disaccharides 1.18 g
- Starch 4.88 g
- Amylose 1.22 g
- Amylopectin 3.66 g
- Digestible Starch 4.15 g
- Resistant Starch 0.49 g
- Fibre 8.4 g
- Soluble Fibre 2.94 g
- Insoluble Fibre 5.46 g
- Protein 18.1 g
- Plant Protein 17.2 g
- Fat 54.8 g
- Saturated Fat 6.82 g
- Monounsaturated Fat 30.1 g
- Polyunsaturated Fat 13.5 g
- Vitamins 81.2 mg
- Vitamin A 20 µg
- Vitamin B1 — Thiamine 0.19 mg
- Vitamin B2 — Riboflavin 0.14 mg
- Vitamin B3 — Niacin 1.82 mg
- Vitamin B5 — Pantothenic Acid 0.45 mg
- Vitamin B6 0.13 mg
- Vitamin B7 — Biotin 13.2 µg
- Vitamin B9 — Folate 34.8 µg
- Vitamin C 2 mg
- Vitamin E 4.26 mg
- Vitamin K 4.2 µg
- Minerals 256 mg
- Major Minerals 247 mg
- Trace Minerals 8.2 mg
- Salt 0.01 g
- Sodium Chloride 0.01 g
Vitamins
vitamin-c: 2 · vitamin-a: 20 · vitamin-b1-thiamine: 0.19 · vitamin-b2-riboflavin: 0.14 · vitamin-b3-niacin: 1.82 · vitamin-b5-pantothenic-acid: 0.45 · vitamin-b6: 0.13 · vitamin-b7-biotin: 13.2 · vitamin-b9-folate: 34.8 · vitamin-e: 4.26 · vitamin-k: 4.2 ·
Minerals
Sodium: 5.39 · Potassium: 211 · Calcium: 31 · Iron: 0.6 · Zinc: 2.6 · Iodine: 5 ·
Nuts pack energy-dense oils, plant protein, and fibre; sodium stays low until salted.
History
Foraging peoples across oak ranges processed acorns into staple calorie foods after leaching tannins.
Korean and East Asian cuisines developed acorn jelly and starch products (dotorimuk traditions).
Indigenous acorn processing knowledge was documented while settler agriculture displaced oak mast staples in many regions.
Foraging revival and Korean-food interest returned acorn flour and jelly to specialty pantries.