EXPERIMENTS ON THE SPOILAGE OF TOMATO KETCHUP.

Issued January 9, 1909.

U. S. DEPARTMENT OF AGRICULTURE,
BUREAU OF CHEMISTRY—BULLETIN No. 119.
H. W. WILEY, Chief of Bureau.

EXPERIMENTS ON THE SPOILAGE
OF TOMATO KETCHUP.

BY
A. W. BITTING,
INSPECTOR, BUREAU OF CHEMISTRY.

WASHINGTON:
GOVERNMENT PRINTING OFFICE.
1909.

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LETTER OF TRANSMITTAL.

U. S. Department of Agriculture,
Bureau of Chemistry,
Washington, D. C., July 15, 1908.

Sir: I have the honor to submit for your approval a report madeby Inspector Bitting of experimental work on the spoilage of tomatoketchup, the conditions contributing thereto, methods of prevention,the action of preservatives, and the length of time that the productwill keep under varying conditions of manufacture and temperature,both before and after opening. Every effort has been made toconduct the work in a practical way, and the results obtained cannot fail to be of interest and profit both to the manufacturer andconsumer. I recommend that this report be published as BulletinNo. 119 of the Bureau of Chemistry.

Respectfully,      H. W. Wiley,
Chief.

Hon. James Wilson,
Secretary of Agriculture.

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CONTENTS.