Why foods spoil (molds, yeasts, bacteria)
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Duration: 0:14:04
Genre: Educational
Year Published: 1957
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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Indiana University Library Moving Image Archive
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