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Harmless🍽️ Edible

🍄 Giant puffball

Calvatia gigantea · Agaricaceae

🌳 Temperate Europe🏔️ Mountains🌲 Boreal🍁 North America
🧠 To remember it“Cut in half before cooking” — solid, uniform white flesh means it's a puffball; a mushroom outline forming inside means it's an amanita, throw it away.
Giant puffball — Calvatia gigantea

🔍 Identify it without mistakes

Spectacular mushroom, a white ball that can exceed the size of a soccer ball, fully edible as long as its internal flesh remains pure white and uniform. The universal safety rule — slice it in half before cooking — is non-negotiable here: this step rules out any confusion with the "egg" stage of a deadly amanita.

  1. spherical to ovoid shape, smooth to finely granular, white then cream then brownish at maturity
  2. NO stem, gills, or distinct pores at the edible stage: the interior is a solid, uniform flesh
  3. size reaching 20 to 50 cm in diameter, sometimes over a meter, weighing several kilos
  4. internal flesh of pure, uniform white from center to edge at the edible stage (like a firm fresh cheese)
  5. at maturity, the flesh turns yellow then brown, turning into a brown spore powder (inedible at this stage)
  6. grows on the ground in meadows, forest edges, and clearings, never attached to wood
Size20-50 cm in diameter (up to over 1 m reported)
Floweringsummer-autumn
Habitatmeadows, lawns, clearings, forest edges, rich soils

⚠️ Not to be confused with

Deadly young amanitas in the "egg" stage (notably death cap) (Amanita phalloides, Amanita virosa au stade primordial)mortel

To tell them apart: ALWAYS SLICE IN HALF, top to bottom, any white ball you harvest before cooking: a young puffball reveals a white, uniform flesh from center to surface; an amanita "egg" reveals a visible outline of a cap, gills, and stem forming inside the universal veil (the miniature mushroom is visible in cross-section) — if you have any doubt about this cross-section, never consume it

🍽️ Eating it

Partsinternal flesh, only while it remains white and firm
Seasonaugust-october
Tastemild, texture close to firm tofu, absorbs seasonings well

Preparation : always cooked, sliced and pan-fried like a cutlet; never consume if the flesh has started to turn yellow or if internal structures (future cap, gills) are visible when cut; consume quickly after harvesting, as the flesh spoils fast

Sources (3)

No entry replaces a certain identification in the field, or medical advice. When in doubt: don't eat it. If ingestion is suspected: poison control or 112/911.