Never eat a wild mushroom identified only from a website, a book or an app. Have every find checked in person by an expert, such as a mycological society.
Identification
The saffron milk cap is a medium-sized milk cap with an orange to carrot-coloured cap, usually marked with darker concentric rings and developing green stains with age or handling. The cap is convex at first, then depressed in the centre to slightly funnel-shaped, with an inrolled margin when young.
The gills are crowded, orange and slightly decurrent and bruise green. The stem is short, orange, soon hollow and often decorated with darker orange pits. When the flesh or gills are cut, they release a carrot-orange milk (latex) that keeps its colour for a long time before slowly turning greenish. The taste is mild to slightly bitter.
Similar edible species include Lactarius deterrimus (spruce), L. salmonicolor (fir), and L. sanguifluus and L. semisanguifluus, whose milk is wine-red or turns red within minutes. The colour of the milk and the host tree are key identification points.
Habitat and ecology
Lactarius deliciosus is ectomycorrhizal with pines (Pinus), and is especially common in young pine plantations, on sandy or calcareous soils, in grassy clearings and along forest tracks. It has been spread to other continents together with planted pines.
Fruiting runs from late summer to late autumn, often after the first autumn rains. In Mediterranean regions it is one of the most abundant edible mushrooms of the season.
Uses and importance
The saffron milk cap is widely eaten in Spain, Catalonia, southern France, Italy, Eastern Europe and Russia. It is typically grilled or pan-fried with garlic and parsley, added to rice dishes and stews, or preserved in oil, vinegar or salt. Its firm, somewhat granular flesh holds up well to grilling.
Research has explored producing it in plantations of pine seedlings inoculated with the fungus, but nearly all supplies are still wild-harvested.
Safety and edibility
The saffron milk cap is a good edible when correctly identified and cooked. Have every wild mushroom checked in person by an expert, such as a mycological society or a trained mushroom adviser; a website is not enough.
- The main toxic look-alike is the woolly milk cap (Lactarius torminosus), with a pinkish, shaggy-margined cap and white, hot milk. It causes gastrointestinal poisoning.
- Other orange or pink milk caps with white milk can also cause stomach upset; only mushrooms with orange or red milk belong to the edible group described here.
- Eating saffron milk caps can colour urine orange-red. This is caused by pigments and is harmless, but it can worry people who are not expecting it.
- Often infested by larvae: cut each mushroom lengthwise and discard damaged ones.
Always cook milk caps thoroughly.
If you suspect mushroom poisoning, call 999 in an emergency or NHS 111 for urgent advice straight away, even before symptoms appear, and keep the remains of the mushrooms.
Look-alikes
Cut the gills and look at the milk. Lactarius deliciosus has carrot-orange milk that stays orange for a long time. L. deterrimus has orange milk turning wine-red within about half an hour and grows with spruce. L. sanguifluus has wine-red milk from the start. L. torminosus has white milk, a hairy pinkish cap and grows with birch; it is toxic.
In the UK
The saffron milkcap occurs in Britain and Ireland under pines, mostly Scots pine, on acid and sometimes chalky soils, from late summer to late autumn. It can be locally common in pine plantations and Scottish pinewoods.
Its carrot-orange milk, which slowly turns green, and green staining on the cap and gills are good characters. Several related milkcaps under spruce and pine look similar; most are edible but less tasty. Eating it may turn urine red, which is harmless.