Why foods spoil (molds, yeasts, bacteria)

Duration: 0:14:04

Genre: Educational

Year Published: 1957

Creator: Encyclopaedia Britannica Educational Corporation: Distributor | Indiana University Audio-Visual Center: Distributor

Format: 16mm

Color: B&W

Sound: sound

Description: Reviews pioneer efforts to preserve foods; describes work of molds, yeasts, and bacteria, explaining how they grow and multiply, how they spoil food, and how they can be destroyed by such methods as drying, smoking, canning, freezing, pasteurizing, dehydration, and by the use of gamma rays.

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