SIMPLE
Testing acidity of milk, 1930 Item Info
- Title:
- Testing acidity of milk, 1930
- Creator (Organization):
- Iowa State University
- Date Created:
- 1930
- Description:
- This photograph, taken July 16, 1930, shows E.F. Goss, Associate Professor of Dairy Industries at Iowa State College (University) using the Nafis Acid Test to measure the acidity of the milk, an important part of the process in making cottage cheese. Controlling the acidity of the milk as it sours keeps the curd firm, not mushy, and prevents the flavor of the cheese from becoming too sharp. Professor Goss is shown titrating a measured amount of milk in a white porcelain cup with an alkali solution that has been placed in a burette.
- Subject (Topic):
- Dairying
- Subject (Organization):
- Iowa State University
- Location:
- Iowa--Story County Iowa
- Language:
- zxx
- Source:
- Iowa State University. Department of Food Technology records, 1891-2010
- Call Number:
- RS 9/13
- Finding Aid Permalink:
- https://n2t.net/ark:/87292/w9b78v
- Contributing Institution:
- Iowa State University. Special Collections and University Archives
- Publisher:
- Iowa State University. Library
- Extent:
- 15.2 x 20.0 cm
- Genre:
- photographs
- Type:
- Image
- Format:
- image/jpeg
- Digital Collection Title:
- Iowa State University photographs
- Digital Collection Permalink:
- https://n2t.net/ark:/87292/w9610vr73
- Identifier:
- universityphotographs118
- Filename:
- 9-13-f_dairy_703-4-4.jpg
- Item Permalink:
- https://n2t.net/ark:/87292/w90v89h2c
Source
- Preferred Citation:
- "Testing acidity of milk, 1930", Iowa State University Photographs, Iowa State University Library Digital Collections
- Reference Link:
- https://n2t.net/ark:/87292/w90v89h2c
Rights
- Rights:
- This item is protected by copyright and related rights. You are free to use this item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses, please obtain permission from Iowa State University Library Special Collections and University Archives.