You may be grossed out, but insects and mold in our food are not new. The F.D.A. actually condones a certain percentage of “natural contaminants” in our food supply — meaning, among other things, bugs, mold, rodent hairs and maggots.
In its (falsely) reassuringly subtitled booklet “The Food Defect Action Levels: Levels of Natural or Unavoidable Defects in Foods That Present No Health Hazards for Humans,” the F.D.A.’s Center for Food Safety and Applied Nutrition establishes acceptable levels of such “defects” for a range of foods products, from allspice to peanut butter. . . .
Tomato juice, for example, may average “10 or more fly eggs per 100 grams [the equivalent of a small juice glass] or five or more fly eggs and one or more maggots.” Tomato paste and other pizza sauces are allowed a denser infestation — 30 or more fly eggs per 100 grams or 15 or more fly eggs and one or more maggots per 100 grams.
Canned mushrooms may have “over 20 or more maggots of any size per 100 grams of drained mushrooms and proportionate liquid” or “five or more maggots two millimeters or longer per 100 grams of drained mushrooms and proportionate liquid” or an “average of 75 mites” before provoking action by the F.D.A.
Think your beer is clean? Think again. "[J]ust 10 grams of hops could have as many as 2,500 plant lice."
Here's the most stomach-churning fact:
In case you’re curious: you’re probably ingesting one to two pounds of flies, maggots and mites each year without knowing it. . . .
The F.D.A. considers the significance of these defects to be “aesthetic” or “offensive to the senses,” which is to say, merely icky as opposed to the “mouth/tooth injury” one risks with, for example, insufficiently pitted prunes. This policy is justified on economic grounds, stating that it is “impractical to grow, harvest or process raw products that are totally free of non-hazardous, naturally occurring, unavoidable defects.”