Mushrooms that have gone bad are a sticky and slimy, and will be darker in color. Once mushrooms begin to develop a slight slime, they can be cooked to extend the shelf life for several more days. More »

The easiest way to tell if mushrooms are bad is by touching them, according to EatByDate. Spoiled mushrooms have a slimy or sticky surface and tend to darken in color. Spoiled mushrooms also feel mushy and may have mold ... More »

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Not all mushrooms are toxic to dogs, though to be safe, dogs should not be permitted to eat them. Mushrooms are difficult to identify, so always assume the worst and bring a dog that has eaten mushrooms to the veterinari... More »

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While it is possible to eat raw portobello mushrooms, Dr. Andrew Weil advises against eating any mushrooms without cooking them first. Raw mushrooms contain potentially harmful and toxic carcinogens. More »

Maitake mushrooms are grown in Japan and the Northeastern United States, originating from the roots of old trees, particularly oak trees. They are sometimes grown by mushroom cultivators in these areas, but are not sold ... More »

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Cooks do not have to remove the gills from portobello mushrooms. Those who choose to remove the gills can use a spoon to scrape them off. More »

Some edible fall mushrooms include the chanterelle, the giant puffball, and the hen of the woods. The chicken of the woods is another edible fall mushroom with a similar name to the hen of the woods, but very different f... More »