Steaming and soaking in water can reduce the amount of carcinogens but will not eliminate them
The World Cancer Organization has rated the ferns as a Group 2B carcinogen, and the ferns have shown carcinogenicity in animal studies.
However, we usually eat fiddleheads, fiddleheads will be dealt with, because directly eat fiddleheads is not good, most cases are to be steamed and then fried, this method, can make the original fiddleheads glycoside content to a certain extent, in addition to the water immersion, alkaline water or grass ash treatment, but also to reduce the original fiddleheads glycoside, "but these are only to make the content of the decline, not eliminated".
On the basis of the results of the current epidemiological survey, "fiddleheads are still a risk", suggesting that it is necessary to control the frequency of eating fiddleheads, as well as the number of fiddleheads eaten. As long as the amount is controlled, there is no need to panic if you eat a little bit of fiddleheads once in a while. Ferns and bacon, sausage, barbecue, similar to the situation, are carcinogenic risk of food, eat a little bit do not have to worry too much, do not eat a lot of long-term.