Microwaving might be probably the most environment friendly technique to cut back agaritine ranges in contemporary mushrooms.
There is a toxin in plain white button mushrooms referred to as agaritine, which can be carcinogenic. Plain white button mushrooms develop to be cremini (brown) mushrooms, and cremini mushrooms develop to be portobello mushrooms. They’re all the exact same mushroom, just like how inexperienced bell peppers are simply unripe purple bell peppers. The quantity of agaritine in these mushrooms will be diminished by cooking: Frying, microwaving, boiling, and even simply freezing and thawing decrease the degrees. “It’s subsequently beneficial to course of/cook dinner Button Mushroom earlier than consumption,” one thing I famous in a video that’s now greater than a decade previous.
Nonetheless, as proven under and at 0:51 in my video Is It Protected to Eat Uncooked Mushrooms?, when you look on the numerous cooking strategies, the agaritine in these mushrooms isn’t fully destroyed. Take dry baking, for instance: Baking for ten minutes at about 400° Fahrenheit (“a course of just like pizza baking”) solely cuts the agaritine ranges by a few quarter, so 77 p.c nonetheless stays.
Boiling appears higher, showing to wipe out greater than half the toxin after simply 5 minutes, however the agaritine isn’t truly eradicated. As an alternative, it’s simply transferred to the cooking water. So, ranges inside the mushrooms drop by about half at 5 minutes and by 90 p.c after an hour, however that’s largely as a result of the agartine is leaching into the broth. So, when you’re making soup, as an illustration, 5 minutes of boiling isn’t any more practical than dry baking for ten minutes, and, even after an hour, about half nonetheless stays.
Frying for 5 to 10 minutes eliminates a whole lot of agartine, however microwaving will not be solely a extra healthful technique to cook dinner, nevertheless it works even higher, as you possibly can see right here and at 1:39 in my video. Researchers discovered that only one minute within the microwave “diminished the agaritine content material of the mushrooms by 65%,” and solely 30 seconds of microwaving eradicated greater than 50 p.c. So, microwaving might be the best technique to cut back agaritine ranges in contemporary mushrooms. 
My method is so as to add dried mushrooms into the pasta water after I’m making spaghetti. Between the reductions of 20 p.c or so from the drying and 60 p.c or so from boiling for ten minutes and straining, greater than 90 p.c of agaritine is eradicated.
Ought to we be involved concerning the residual agaritine? In keeping with a overview funded by the mushroom trade, under no circumstances. “The accessible proof to this point means that agaritine from consumption of…mushrooms poses no recognized toxicological danger to wholesome people.” The researchers acknowledge agartine is taken into account a possible carcinogen in mice, however then that knowledge must be extrapolated to human well being outcomes.
The Swiss Institute of Know-how, for instance, estimated that the typical mushroom consumption within the nation can be anticipated to trigger about two circumstances of most cancers per 100 thousand individuals. That is just like consumption in america, as seen under and at 3:00 in my video, so “one might theoretically count on about 20 most cancers deaths per 1 x 106 [one million] lives from mushroom consumption.” As compared, usually, with a brand new chemical, pesticide, or meals additive, we’d wish to see the most cancers danger decrease than one in one million. “By this strategy, the typical mushroom consumption of Switzerland is 20-fold too excessive to be acceptable. To stay beneath the restrict”—and preserve danger down to at least one in one million—“‘mushroom lovers’ must prohibit their consumption of mushrooms to at least one 50-g serving each 250 days!” That’s a few half-cup serving as soon as in simply over eight months. To place that into perspective, even when you have been consuming a single serving each single day, the ensuing further most cancers danger would solely be about one in ten thousand. “Put one other method, if 10,000 individuals consumed a mushroom meal each day for 70 years, then along with the 3000 most cancers circumstances arising from different elements, yet another case may very well be attributed to consuming mushrooms.” 
However, once more, that is all primarily based “on the presumption that leads to such mouse fashions are equally legitimate in people.” Certainly, that is all simply extrapolating from mice knowledge. What we’d like is a large potential research to look at the affiliation between mushroom consumption and most cancers danger in people, however there weren’t any such research—till now.
Researchers titled their paper: “Mushroom Consumption and Threat of Complete and Website-Particular Most cancers in Two Giant U.S. [Harvard] Potential Cohorts” and located “no affiliation between mushroom consumption and complete and site-specific cancers in U.S. ladies and men.”
Consuming uncooked or undercooked shiitake mushrooms can trigger one thing else, although: shiitake mushroom flagellate dermatitis. Flagellate as in flagellation, whipping, flogging. Under and at 4:48 in my video, you possibly can see a rash that makes it look as when you’ve been whipped.
Right here and at 4:58 in my video is one other picture of the rash. It’s considered precipitated by a compound in shiitake mushrooms referred to as lentinan, however as a result of warmth denatures it, it solely appears to be an issue with uncooked or undercooked mushrooms.
Now, it is uncommon. Solely about 1 in 50 individuals are even prone, and it goes away by itself in per week or two. Curiously, it will possibly strike as many as ten days after consuming shiitake mushrooms, which is why individuals might not make the connection. One unlucky man suffered on and off for 16 years earlier than a prognosis. Hopefully, a whole lot of docs will watch this video, and in the event that they ever see a rash like this, they’ll inform their sufferers to cook dinner their shiitakes.
