Nuts
In Shell
In-shell chestnuts are the raw market form still wearing their hard brown armour. This is what you buy by the bag for home roasting: each nut must be scored, heated, and peeled. The shell slows moisture loss and keeps the kernel cleaner during short cool storage, but it does not make the nut immortal. A good in-shell chestnut is heavy, shiny, and free of punctures. A bad one is dull, lightweight, or shows white mould near the base. Keep them in a cool, ventilated place like potatoes, not sealed warm plastic where condensation breeds spoilage. Plan to cook within a week of purchase for peak sweetness. The shell itself is waste after cooking; all culinary value sits inside.
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Characteristics
Preparations
Traits
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 1.5 g
- Saturated Fat 0.3 g
- Trans Fat 0 g
- Monounsaturated Fat 0.45 g
- Polyunsaturated Fat 0.75 g
- Cholesterol 0 mg
- Sodium 4.88 mg
- Salt 0.01 g
- Total Carbohydrate 80 g
- Dietary Fibre 55 g
- Total Sugars 3.81 g
- Complex / starch 15.2 g
- Protein 3 g
- Water 9.8 g
- Energy 346 kcal
- Water 9.8 g
- Carbohydrates 80 g
- Protein 3 g
- Fat 1.5 g
- Saturated Fat 0.3 g
- Monounsaturated Fat 0.45 g
- Polyunsaturated Fat 0.75 g
- Omega-3 0.11 g
- Vitamins 91.5 mg
- Vitamin A 15 µg
- Vitamin B1 — Thiamine 0.23 mg
- Vitamin B2 — Riboflavin 0.17 mg
- Vitamin B3 — Niacin 2.27 mg
- Vitamin B5 — Pantothenic Acid 0.56 mg
- Vitamin B6 0.17 mg
- Vitamin B7 — Biotin 16.6 µg
- Vitamin B9 — Folate 43.8 µg
- Vitamin C 2 mg
- Vitamin E 5.38 mg
- Vitamin K 5.3 µg
- Minerals 364 mg
- Major Minerals 363 mg
- Trace Minerals 1.5 mg
- Iron 1.5 mg
- Salt 0.01 g
Vitamins
vitamin-c: 2 · vitamin-a: 15 · vitamin-b1-thiamine: 0.23 · vitamin-b2-riboflavin: 0.17 · vitamin-b3-niacin: 2.27 · vitamin-b5-pantothenic-acid: 0.56 · vitamin-b6: 0.17 · vitamin-b7-biotin: 16.6 · vitamin-b9-folate: 43.8 · vitamin-e: 5.38 · vitamin-k: 5.3 ·
Minerals
Shell is largely mineral; edible value is minimal except as calcium source when finely prepared.
History
In-shell market sales were the default way chestnuts left the forest for town.
Autumn grocery displays of in-shell chestnuts became a seasonal ritual in temperate cities.
Mesh bags of in-shell nuts still dominate holiday produce aisles beside ready peeled alternatives.