The Mushroom With a Sting in Its Milk

I took this photograph after clearing self-sown conifer saplings from a block of newly planted native woodland in Bransdale last Thursday. I am reminded of a Disney portrayal of a woodland glade.

My ‘ObsIdentify’ app is 69% certain these are Lactarius rufus¹“Rufous Milkcap.” Martat, Marttaliitto, www.martat.fi/in-english/mushrooms/rufous-milkcap/. Accessed 17 Oct. 2026., the rufous milkcap. The milk and the taste would be key identifiers but I didn’t check either. However that name is good enough for this post.

The species grows near conifers, now and then near birch, on poor sandy soil,²“Lactarius rufus.” Interactive Guide to Mushrooms and Other Fungi, Naturalis Biodiversity Center, mushrooms.linnaeus.naturalis.nl/linnaeus_ng/app/views/species/nsr_taxon.php?id=100472. Accessed 17 Oct. 2026. so a clearing full of conifer saplings is a fair address.

Western field guides class the rufous milkcap as inedible.³“Lactarius rufus (Scop.) Fr. – Rufous Milkcap.” First Nature, first-nature.com/fungi/lactarius-rufus.php. Accessed 17 Oct. 2026. As of 1984, it is ranked among the most commonly harvested wild mushrooms in Finland.⁴“Lactarius rufus.” Wikipedia, Wikimedia Foundation, en.wikipedia.org/wiki/Lactarius_rufus. Accessed 17 Oct. 2026. One man’s meat is another man’s poison.

Apparently, the milk tastes mild at first, then turns very hot and acrid after about a minute.⁵“Red Hot Milk Cap.” JungleDragon, www.jungledragon.com/specie/17152/red_hot_milk_cap.html. Accessed 17 Oct. 2026. Finnish guidance says to boil it for ten minutes before cooking.⁶“Rufous Milkcap.” Martat, Marttaliitto, www.martat.fi/in-english/mushrooms/rufous-milkcap/. Accessed 17 Oct. 2026.

Please do not treat these words as permission to eat it.

• 1
  “Rufous Milkcap.” Martat, Marttaliitto, www.martat.fi/in-english/mushrooms/rufous-milkcap/. Accessed 17 Oct. 2026. ↩︎
• 2
  “Lactarius rufus.” Interactive Guide to Mushrooms and Other Fungi, Naturalis Biodiversity Center, mushrooms.linnaeus.naturalis.nl/linnaeus_ng/app/views/species/nsr_taxon.php?id=100472. Accessed 17 Oct. 2026. ↩︎
• 3
  “Lactarius rufus (Scop.) Fr. – Rufous Milkcap.” First Nature, first-nature.com/fungi/lactarius-rufus.php. Accessed 17 Oct. 2026. ↩︎
• 4
  “Lactarius rufus.” Wikipedia, Wikimedia Foundation, en.wikipedia.org/wiki/Lactarius_rufus. Accessed 17 Oct. 2026. ↩︎
• 5
  “Red Hot Milk Cap.” JungleDragon, www.jungledragon.com/specie/17152/red_hot_milk_cap.html. Accessed 17 Oct. 2026. ↩︎
• 6
  “Rufous Milkcap.” Martat, Marttaliitto, www.martat.fi/in-english/mushrooms/rufous-milkcap/. Accessed 17 Oct. 2026. ↩︎