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Vegetable of the Month: Mushrooms

Photo of mushrooms

Mushrooms are not a true vegetable in the sense that it does not have any leaves, roots, or seeds, and really does not need any light to grow. So what exactly is a mushroom? It is a fungus, which grows in the dark and creates more mushrooms by releasing spores. Mushrooms are found all over the world and have been a very honored food in many cultures. Ancient Egyptians considered mushrooms to be food for the royals. The French adored the fungus and began harvesting them in caves during the seventeenth century. These famous fungi didn't reach popularity in the United States until the late 1800s.

How do mushrooms grow?

Since mushrooms are grown from microscopic spores, Mushroom farming is a step-by-step process that involves:

  • two phases of composting
  • spawning (mushroom farmer's collecting the spores)
  • casing (a soil mixture that acts as a water reservoir that is placed on top of the mushroom spores)
  • pinning (the growth stage where the shape of the mushroom forms)
  • harvesting

It's best to buy your mushrooms from a reputable grower or grocer instead of hunting them yourself, as there are many poisonous mushrooms. Incorrectly identifying them can lead to symptoms of sweating, cramps, diarrhea, confusion, convulsions, and potentially result in liver damage, or even death.

Varieties

There are over 38,000 mushroom varieties today. Some are edible and some are highly toxic. Here's a small sample of the most popular edible mushrooms you'll see in the market:

Photo of Agaricus mushroom Agaricus (White or Button)
These mushrooms are the most common variety prepackaged in supermarkets; available fresh, canned, or frozen.
White mushrooms are mildly flavored, are tasty when eaten raw but even more flavorful when cooked.
Photo of Chantarelle mushroom Chanterelles, or Girolle
These trumpet shaped fungi are highly regarded mushrooms favored for their gold to yellow color, and rich flavor, ranging from apricot to earthier tasting. Chanterelles are best eaten fresh, although they are also available dried or canned.
Photo of Crimini mushroom Crimini, or Italian Brown
These mushrooms are similar to the button variety, yet they are darker in color, have a richer flavor, and have a more dense texture. Criminis were once an imported mushroom but are now grown domestically.
Photo of Enoki mushroom Enoki, or Enokitake
This fungi takes on a sproutlike appearance with small caps and thin, long, stems. Native to Japan, white in color, with a light fruity taste, these mushrooms are excellent when served raw in soups and salads.
Photo of Morel mushroom Morel
These mushrooms are highly priced and highly prized for their intense earthly flavor. They are usually found in the wild, although can now be grown commercially. This conical shaped, honey combed surface fungi is small, with dark brown hues, is suitable for stuffing and is ideal for sauces and stews.
  
Photo of Oyster mushroom Oyster, or Pleurotus
These mushrooms grow in clusters, and range in color from off-white to shades of brown. Subtly tasting like an oyster, its chewy texture is more suited to cooked dishes.
Photo of Porcini mushroom Porcino
Porcini mushrooms are well valued for their meaty texture, interesting flavor, and distinguishing shape. These mushrooms vary in size and is domestically grown or imported from Europe depending on the season. This variety is usually expensive, but is considered one of the finest-tasting mushrooms.
Photo of Portobello mushroom Portobello
These are large cremini-like mushrooms that are sometimes the size of a regular hamburger! These fungi are circular, flat, and long, with a dense, chewy texture. Portobellos are excellent for grilling or roasting.
Photo of shiitake mushroom Shiitake
Shiitake mushrooms were originally cultivated on natural oak logs and only grown in Japan, but are now available domestically. These mushrooms are large, black-brown, and have an earthy rich flavor. This fungi is enjoyed in stir-fries, soups, or even a meat substitute. Dried Shiitakes have more intense flavors and are sometimes preferable to fresh.

Cleaning

Clean mushrooms only when you are ready to use them. Remove any bits of the debris on the surface, rinse with cold running water or gently wipe the mushrooms with a damp cloth, paper towel, or soft brush.

Preparation

How do I use dried mushrooms? Dried mushrooms are intensely concentrated in flavor and should be treated more like a seasoning than a vegetable. You'll need to soak the dried mushrooms in hot water for 20-30 minutes, rinse, then chop, and use. Saving the soaking water and adding it to your sauces or soups will intensify the mushroom flavor.

Mushrooms are available all year long and although there are many different varieties, selecting any kind of mushrooms are easy. You should look for firm, moisture-free (not dry), unblemished caps, and free of mold. Place purchased loose mushrooms in a paper bag in the refrigerator. Airtight plastic bags tend to retain moisture and will accelerate spoilage. Properly stored mushrooms will last for approximate five days.

Mushrooms can be frozen but they must be cleaned, cooked, and placed in a ½ cup or 1 cup container to freeze. Don't forget to mark the date on the container, frozen mushrooms will last several months.

Mushrooms are versatile and may be eaten raw or cooked whole, sliced or chopped. Certain varieties like shiitake and portabella, must have their stems discarded or used as a flavoring agent, as they are often tough.
Preparation Hint: Squeeze a small amount of lemon juice on the mushrooms to retain the color.

Cooked Mushrooms
Serving size  1/2 cup (78g) 
Amounts Per Serving % Daily Value
Calories 20  
Calories from Fat 5  
Total Fat 0g 0%
Saturated Fat 0g 0%
Sodium 0mg 0%
Cholesterol 0mg 0%
Total Carbohydrate 4g 1%
  Dietary Fiber 2g 7%
  Sugars 2g
Protein 2g
Vitamin A 0%
Vitamin C 6%
Calcium 0%
Iron 8%

* Percent Daily Values are based on a 2,000 calorie diet.

   
 Raw Mushrooms
Serving size 1/2 cup (35g)
Amounts Per Serving % Daily Value
Calories 10  
Calories from Fat 0  
Total Fat 0g 0%
Saturated Fat 0g 0%
Sodium 0mg 0%
Cholesterol 0mg 0%
Total Carbohydrate 1g 0%
  Dietary Fiber 0g 0%
  Sugars 1g
Protein 1g
Vitamin A 0%
Vitamin C 2%
Calcium 0%
Iron 2%

* Percent Daily Values are based on a 2,000 calorie diet.

   


Recipes

Photo of a mushroom cap

Fresh Mushroom Soup
Serves 4 (1 ½ cup servings)
Each serving equals 1/2 cup of fruit or vegetables
Source: Produce for Better Health/M.J. Smith

Ingredients

1½ pounds fresh mushrooms
8 scallions
½ tsp thyme
¼ tsp black pepper
1 Tbsp Dijon mustard
½ cup red wine
1 quart fat-free no-added-salt chicken broth
1 cup plain non-fat yogurt

Chop mushrooms and scallions into bite-sized pieces. Place in non-stick Dutch oven and cook with red wine until tender. Add thyme, pepper, mustard, and chicken broth. Bring to a boil and simmer for 15 minutes. Add yogurt, stirring just to blend, and serve. Makes 4 (1½ cup) servings.

Nutritional analysis per serving: Calories 135, Fat 2g, Calories from Fat 13%, Protein 15g, Cholesterol 1mg, Fiber 3g, Sodium 164mg.

Photo of mushroom varieties

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