Funghi

Hollow Tube

The hollow tube is the open interior channel of the black trumpet running from rim toward the base—where grit, pine needles, and sand collect. Cleaning this cavity is the main prep task: split lengthwise or use a soft brush, then a quick rinse only if needed. Culinary flesh is the thin wall around the hollow, not a stuffed tube in the animal sense. Once clean, the wall cooks as a single delicate ribbon of mushroom. Skipping hollow cleaning is the usual cause of gritty dishes.

Track this ingredient

Quantity

Unit

Kg Liters Whole

Note

Characteristics

Preparations

BrushedCookedRinsed If NeededSplit

Traits

Collects GritFragileGrit ProneHollowMust CleanOpen InteriorThin WallsThin-Walled

Nutrition

Typical values per 100 g edible portion. Nutrient names open the reference page.

Nutrition Facts

Per 100 g edible portion

Calories 28.3

Amount per 100 g

Total Fat 0.41 g
Saturated Fat 0.1 g
Trans Fat 0 g
Monounsaturated Fat 0 g
Polyunsaturated Fat 0.2 g
Cholesterol 0 mg
Sodium 10.2 mg
Salt 0.05 g
Total Carbohydrate 3.79 g
Dietary Fibre 1.91 g
Total Sugars 1.51 g
Complex / starch 0.53 g
Protein 3.16 g
Water 92.9 g

Detailed nutrients

Energy 28.3 kcal
Water 92.9 g
Carbohydrates 3.79 g
- Sugars 1.51 g
- Starch 0.53 g
- Fibre 1.91 g
Protein 3.16 g
Fat 0.41 g
- Saturated Fat 0.1 g
- Polyunsaturated Fat 0.2 g
  - Omega-3 0.02 g
Vitamins 54.7 mg
- Vitamin A 15 µg
- Vitamin B1 — Thiamine 0.08 mg
- Vitamin B2 — Riboflavin 0.41 mg
- Vitamin B3 — Niacin 4.08 mg
- Vitamin B5 — Pantothenic Acid 1.52 mg
- Vitamin B6 0.1 mg
- Vitamin B7 — Biotin 7.9 µg
- Vitamin B9 — Folate 19.6 µg
- Vitamin C 2 mg
- Vitamin D 2.9 µg
- Vitamin E 0.1 mg
- Vitamin K 1 µg
Minerals 248 mg
- Major Minerals 246 mg
  - Calcium 28 mg
  - Sodium 10.2 mg
  - Potassium 208 mg
- Trace Minerals 1.5 mg
  - Iron 1.5 mg
Salt 0.05 g

Vitamins

vitamin-c: 2 · vitamin-a: 15 · vitamin-b1-thiamine: 0.08 · vitamin-b2-riboflavin: 0.41 · vitamin-b3-niacin: 4.08 · vitamin-b5-pantothenic-acid: 1.52 · vitamin-b6: 0.1 · vitamin-b7-biotin: 7.9 · vitamin-b9-folate: 19.6 · vitamin-d: 2.9 · vitamin-e: 0.1 · vitamin-k: 1 ·

Minerals

Sodium: 10.15 · Potassium: 208 · Calcium: 28 · Iron: 1.5 ·

Hollow Tube of Black Trumpet: composition reflects this culinary part relative to the whole ingredient.

History

1800FR

Foragers learned to split or brush craterelle hollows to remove forest debris before the pan.

1950

Market guides emphasised hollow cleaning as essential black trumpet prep.