Edible With Caution: Mushrooms That Need Care

What does edible with caution mean?

Every species in this tier comes with a catch. Some are toxic raw and safe cooked, and others suit most people but upset a few. The catch differs from species to species, so the tier name alone never tells you what to do with your find.

• Some need thorough cooking to break down irritants, as with morels and the blusher
• Some cause reactions in certain people even after correct cooking
• Some are fine in small amounts but not in quantity

Preparation rules that change by species

Each profile in this tier spells out its own step, and the steps do not swap between species. Peel every slippery jack cap, because the glutinous skin is the part that upsets people. Pick shaggy manes only while young and white, and cook them the same day. The blusher needs cooking through every time, since raw or lightly cooked blusher upsets the stomach through a heat-sensitive toxin.

Which caution species have dangerous lookalikes?

Several species here share ground with poisonous or deadly twins, and cooking never rescues a wrong name. Velvet shank can grow near deadly galerina, which can lose its ring and keeps its amatoxins through cooking. Neither a white print nor a ringless stem proves a velvet shank safe on its own, so its profile asks a qualified local identifier to confirm the whole collection.

Before a shaggy parasol goes in the pan, take a spore print. White spores fit its group, and green spores mean you hold the poisonous green-spored parasol. Even after a white print and thorough cooking, a minority of people get an upset stomach from correctly identified shaggy parasols.

Never eat a purple mushroom on color alone. The wood blewit has a bare stem and a pale pinkish buff spore print, while webcaps carry a cobweb veil when young and print rusty brown. Some webcaps cause kidney failure.

With the field mushroom, dig up the base of every white gilled specimen. The whole base answers both of the confusions this species carries. If the bulb flashes chrome yellow, you have a yellow stainer, and a membranous sac means an Amanita and a medical emergency.

Trying a caution species for the first time

Preparation rules differ by species, so follow the profile for the exact mushroom you have identified. With any caution species, eat a small portion first, cooked as directed. The chicken of the woods profile asks for that small first portion, and it adds that people have reported reactions even after eating correctly identified specimens.