What are the different types of puffballs?

Giant puffball (Calvatia gigantea) can be basketball-sized. Gem-studded puffball (Lycoperdon perlatum) is golf-ball sized with spines. All are edible when pure white inside. Earthballs (Scleroderma) are NOT puffballs and are toxic — they have a thick rind and marbled purple-black interior.

How large can a giant puffball get?

Giant puffballs regularly reach 30–50cm in diameter and can occasionally exceed 70cm. A typical specimen contains 7 trillion spores.

What does puffball taste like?

Puffball has a mild, delicate flavor similar to mild tofu or very fresh mozzarella. It absorbs flavors from butter, garlic, and herbs well.

How do I tell an earthball from a puffball?

Earthballs (Scleroderma) have a very thick, tough rind and when cut open, show a marbled purple-black interior at maturity. Puffballs have a thin rind and pure white interior.

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Edible ✓

Free Puffball Mushroom Identifier by Picture Online

Upload a photo and identify puffball mushrooms. Learn the essential cut test that distinguishes safe edible puffballs from potentially deadly Amanita egg-stage look-alikes.

⚠️ Safety Information

⚠️ MANDATORY CUT TEST: Cut any puffball completely in half from top to bottom. SAFE: pure, uniform white interior with no structure. DANGEROUS: any outline of a developing cap, gills, or stem indicates a potentially lethal Amanita egg. Never eat without this test.

About Puffball Mushrooms

Puffball mushrooms (Calvatia gigantea and related species) are round to oval, pure white mushrooms that range from golf-ball to basketball size or larger. They are edible when pure white inside. The critical look-alike is the egg stage of deadly Amanita species, which can look identical externally. The cut test is mandatory.

How Our AI Identifies Puffball Mushrooms

Upload a photo of the puffball. Always perform the cut test before eating any puffball: cut cleanly in half from top to bottom — safe puffballs show pure, uniform white flesh; Amanita eggs show the outline of a developing cap, gills, and stem inside.

🔍 Key Identification Features

Round to pear-shaped, entirely white exterior when immature
Smooth to slightly roughened white skin (peridium)
Pure white interior — uniform, no internal structure visible
No obvious cap, gills, or stem externally
Grows from soil in grasslands, meadows, and forest edges
Size: golf ball to basketball depending on species

🧭 Forager Tips

→The cut test is not optional — it is the only way to confirm a puffball is safe to eat.
→Harvest puffballs that are pure white inside — any yellowing indicates aging.
→Giant puffballs (C. gigantea) are baseball-sized to basketball-sized pure white spheres.
→Puffball flavor is mild — they absorb cooking flavors well. Slice into steaks and sear in butter.
→Do not collect puffballs near roadsides or agricultural areas that may be treated with herbicides.