Part 1

Produced by Tom Cosmas compiled from images made available by The Internet Archive.

Transcriber Note

Text emphasis denoted as Italic.

U. S. DEPARTMENT OF AGRICULTURE.

FARMERS' BULLETIN No. 175.

Home Manufacture and Use of Unfermented Grape Juice.

GEORGE C. HUSMANN,

Expert in Charge of Viticultural Investigations, Bureau of Plant Industry, U. S. Department of Agriculture.

WASHINGTON: GOVERNMENT PRINTING 1903.

LETTER OF TRANSMITTAL.

U. S. Department of Agriculture, Bureau of Plant Industry, Washington, D. C., May 28, 1903.

Sir: I have the honor to transmit herewith a paper on Home manufacture and use of unfermented grape juice, by Mr. George C. Husmann, expert in charge of viticultural investigations in this Bureau, and to recommend it for publication as a Farmers' Bulletin.

Part of the matter contained in this paper has already been published in Bulletin No. 24 of this Bureau on the Manufacture and Preservation of Unfermented Grape Must, but the widespread interest in the subject and the demand for information regarding appliances and methods of manufacture adapted to the ordinary farm and kitchen makes desirable its wider circulation through the Farmers' Bulletin series.

Respectfully,

B. T. Galloway, Chief of Bureau.

Hon. James Wilson, Secretary.

CONTENTS.

Page.

Introduction 5

Historical notes 5

Composition of the grape 6

Causes of fermentation 6

Methods of preventing fermentation 6

Home manufacture 7

Manufacture of larger quantities 9

Useful appliances 10

Composition of unfermented grape juice 12

Flavor and quality in grape juice 12