Fish
Operculum
Operculum of Whelk is the hard shell door—discarded, not eaten. Signals intact whole shellfish in trade. Keep whelk operculum iced until cooking; pat dry for browning, and stop when just opaque. Boiling, salads, braises, and pickles suit the cut. Season with salt, acid, and fat that frame chewy sweet brine.
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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 5.18 g
- Saturated Fat 0.98 g
- Trans Fat 0 g
- Monounsaturated Fat 1.96 g
- Polyunsaturated Fat 1.88 g
- Cholesterol 57.9 mg
- Sodium 76 mg
- Salt 0.19 g
- Total Carbohydrate 0 g
- Dietary Fibre 0 g
- Total Sugars 0 g
- Complex / starch 0 g
- Protein 19.3 g
- Water 70.1 g
- Energy 136 kcal
- Water 70.1 g
- Protein 19.3 g
- Fat 5.18 g
- Saturated Fat 0.98 g
- Monounsaturated Fat 1.96 g
- Polyunsaturated Fat 1.88 g
- Omega-3 0.75 g
- Vitamins 43.2 mg
- Vitamin A 15 µg
- Vitamin B1 — Thiamine 0.11 mg
- Vitamin B2 — Riboflavin 0.17 mg
- Vitamin B3 — Niacin 4.47 mg
- Vitamin B5 — Pantothenic Acid 0.78 mg
- Vitamin B6 0.44 mg
- Vitamin B7 — Biotin 3.3 µg
- Vitamin B9 — Folate 13 µg
- Vitamin B12 — Cobalamin 1.2 µg
- Vitamin C 2 mg
- Vitamin D 1.6 µg
- Vitamin E 0.64 mg
- Vitamin K 0.5 µg
- Minerals 390 mg
- Major Minerals 388 mg
- Trace Minerals 1.5 mg
- Iron 1.5 mg
- Salt 0.19 g
- Cholesterol 57.9 mg
Vitamins
vitamin-c: 2 · vitamin-b12-cobalamin: 1.2 · vitamin-a: 15 · vitamin-b1-thiamine: 0.11 · vitamin-b2-riboflavin: 0.17 · vitamin-b3-niacin: 4.47 · vitamin-b5-pantothenic-acid: 0.78 · vitamin-b6: 0.44 · vitamin-b7-biotin: 3.3 · vitamin-b9-folate: 13 · vitamin-d: 1.6 · vitamin-e: 0.64 · vitamin-k: 0.5 ·
Minerals
Operculum of Whelk: composition reflects this culinary part relative to the whole ingredient.
History
Coastal cooks portioned whelk into operculum pieces for even cooking and trade.
Filleting lines and frozen packs made operculum of whelk available inland.
Restaurants standardised specialty operculum portions of whelk for plate timing.