Molds On Food: Are They Dangerous? II
July 16th, 2005
How Does the U.S. Government Control Aflatoxins?
Aflatoxins are considered unavoidable contaminants of food and feed, even where good manufacturing practices have been followed. The U.S. Food and Drug Administration and the USDA monitor peanuts and field corn for aflatoxin and can remove any food or feed with unacceptable levels of it.
Is Mushroom Poisoning Caused by Molds?
No, it is due to the toxin produced by the fungi, which are in the same family as molds. Mushroom poisoning is caused by the consumption of raw or cooked mushrooms, which are higher-species of fungi. The term “toadstool” (from the German “Todesstuhl” — death’s stool) is commonly given to poisonous mushrooms, but there is no general rule of thumb for distinguishing edible mushrooms from poisonous toadstools. The toxins that cause mushroom poisoning are produced naturally by the fungi. Most mushrooms that cause human poisoning cannot be made safe by cooking, canning, freezing, or any other processing. The only way to avoid poisoning is not to eat poisonous mushrooms.
Are Any Food Molds Beneficial?
Yes, molds are used to make certain kinds of cheeses and can be on the surface of cheese or be developed internally. Blue veined cheese such as Roquefort, blue, Gorgonzola, and Stilton are created by the introduction of P. roqueforti or Penicillium roqueforti spores. Cheeses such as Brie and Camembert have white surface molds. Other cheeses have both an internal and a surface mold. The molds used to manufacture these cheeses are safe to eat.
Why Can Mold Grow in the Refrigerator?
While most molds prefer warmer temperatures, they can grow at refrigerator temperatures, too. Molds also tolerate salt and sugar better than most other food invaders. Therefore, molds can grow in refrigerated jams and jelly and on cured, salty meats — ham, bacon, salami, and bologna.
How Can You Minimize Mold Growth?
Cleanliness is vital in controlling mold. Mold spores from affected food can build up in your refrigerator, dishcloths, and other cleaning utensils.
Clean the inside of the refrigerator every few months with 1 tablespoon of baking soda dissolved in a quart of water. Rinse with clear water and dry. Scrub visible mold (usually black) on rubber casings using 3 teaspoons of bleach in a quart of water.
Keep dishcloths, towels, sponges, and mops clean and fresh. A musty smell means they’re spreading mold around. Discard items you can’t clean or launder.
Keep the humidity level in the house below 40%.
Don’t Buy Moldy Foods
Examine food well before you buy it. Check food in glass jars, look at the stem areas on fresh produce, and avoid bruised produce. Notify the store manager about mold on foods!
Fresh meat and poultry are usually mold free, but cured and cooked meats may not be. Examine them carefully. Exceptions: Some salamis — San Francisco, Italian, and Eastern European types — have a characteristic thin, white mold coating which is safe to consume; however, they shouldn’t show any other mold. Dry-cured country hams normally have surface mold that must be scrubbed off before cooking.
Must Homemade Shelf-Stable Preserves be Water-Bath Processed?
Yes, molds can thrive in high-acid foods like jams, jellies, pickles, fruit, and tomatoes. But these microscopic fungi are easily destroyed by heat processing high-acid foods at a temperature of 212°F in a boiling water canner for the recommended length of time.
How Can You Protect Food from Mold?
When serving food, keep it covered to prevent exposure to mold spores in the air. Use plastic wrap to cover foods you want to stay moist — fresh or cut fruits and vegetables, and green and mixed salads.
Empty opened cans of perishable foods into clean storage containers and refrigerate them promptly.
Don’t leave any perishables out of the refrigerator more than 2 hours.
Use leftovers within 3 to 4 days so mold doesn’t have a chance to grow.
How Should You Handle Food with Mold on It?
Buying small amounts and using food quickly can help prevent mold growth.
But when you see moldy food:
Don’t sniff the moldy item. This can cause respiratory trouble.
If food is covered with mold, discard it. Put it into a small paper bag or wrap it in plastic and dispose in a covered trash can that children and animals can’t get into.
Clean the refrigerator or pantry at the spot where the food was stored.
Check nearby items the moldy food might have touched. Mold spreads quickly in fruits and vegetables
Entry Filed under: General Nutrition
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