Is White Milkcap edible?

Lactarius piperatus is not considered toxic, but it is inedible raw due to its extremely acrid and peppery taste. This acridity is caused by sesquiterpenes, which are irritating to mucous membranes. Proper preparation, typically involving parboiling or salting, is essential to render it edible and palatable. Consuming it raw can cause gastrointestinal upset, including nausea, vomiting, and diarrhea.