Comparison of Woods for Butter Boxes

In Short

This is a formal agricultural research report from 1923, documenting a series of controlled experiments conducted by the University of California. The work addresses a practical economic crisis: the rising cost and scarcity of spruce, the industry standard for shipping butter, following the First World War. By testing white fir and cottonwood as potential substitutes, the text provides a detailed methodology for storage, treatment, and evaluation. It remains a fascinating historical artifact of early 20th-century industrial efficiency and the intersection of forestry and food science.

The Story

The narrative begins with a logistical problem facing California’s creamerymen in the post-war era. For years, the industry relied almost exclusively on spruce wood imported from Washington and Oregon. When wartime shortages caused prices to climb, the industry felt the squeeze. Lumber interests and dairy producers alike pushed for an investigation into local materials—specifically white fir and cottonwood—that were abundant in California but largely overlooked due to a pervasive, unverified fear that these woods would impart a "woody" flavor to the sensitive fats in butter.

The objective is clear: to determine if these local woods could safely store butter without compromising its quality. The author outlines an experimental process designed to account for every variable. Butter is packed into various test containers, ranging from unseasoned wood to boxes treated with paraffin and parchment liners. The experimental "voyage" involves storing the butter under different conditions, including cold storage at 12° F for months and standard market shipping durations.

The middle of the report serves as a rigorous audit of these materials. Through meticulous scoring, the butter is evaluated by experts from the San Francisco Dairy Produce Exchange and the University of California. The results are presented in charts that track the "lowest score" and "average score" of each sample, creating a suspenseful, data-driven progression where the effectiveness of each wood type is pitted against the traditional spruce. The reader follows the butter from its initial 92.5 or 93.0 scores through the long months of storage, observing how even small changes—such as the application of paraffin or the inclusion of parchment—drastically change the outcomes.

The conclusion arrives with scientific finality. The research confirms that white fir and cottonwood are not only viable but, under the right conditions, highly effective substitutes. The report concludes that while untreated wood is unsuitable, properly seasoned and treated boxes perform remarkably well. It ends with a practical endorsement: after the conclusion of the research, the University Farm successfully implemented the use of white fir boxes, signaling a shift in industry standards. The narrative closes not with a dramatic flourish, but with a comprehensive list of other university bulletins, situating this specific study within a broader, burgeoning era of California agricultural innovation.

How It Unfolds

The problem defined The narrative establishes the post-war economic climate, highlighting the dependency on imported spruce and the untapped potential of local white fir and cottonwood. It clearly identifies the fear of flavor contamination as the primary barrier to adopting these local materials.

The experimental setup The author describes the rigorous preparation of samples, including the precise techniques for paraffining boxes over steam jets to ensure a thin, effective coating. This section details the specific storage environments, ensuring the reader understands the controlled nature of the test.

The scoring process The study shifts to the monthly evaluation of the butter samples by professional graders. Tables are introduced to contrast the performance of seasoned versus unseasoned wood, documenting the slow decay or preservation of flavor over time.

The final assessment The report distills the massive amount of data into actionable conclusions. It provides clear guidelines for when and how to use the substitute woods, effectively resolving the initial conflict between cost-savings and quality assurance.

The People

The central figures in this study are not individual characters but the industry stakeholders who occupy the pages of the report. The "creamerymen" represent the cautious, profit-conscious professionals who resisted change due to a long-standing belief in the superiority of spruce. They are the ones who needed convincing through hard data.

Then there is the researcher, G. D. Turnbow, whose voice is precise, objective, and authoritative. He acts as the mediator between the lumber companies—like the Swayne Lumber Company and the Capitol Box Factory—and the dairy industry. The lumber companies are the secondary protagonists, seeking a way to turn their "raw material of little commercial value" into a profitable commodity. Finally, the "scorers"—T. J. Harris, S. L. Denning, and J. C. Marquardt—serve as the final arbiters of truth. Their palates and expertise are the yardstick by which the success of the experiment is measured. Each group wants a solution that maintains high quality while reducing marketing expenses, and they all end up satisfied by the empirical findings that validate the transition to local, seasoned, and treated white fir.

In Its Own Voice

The author explains the fundamental vulnerability of the product being studied:

The volatile fats in butter have the property of absorbing odors, which often results in an undesirable flavor.

The researcher describes the specific, meticulous method used to protect the butter from the containers:

The method of paraffining was to invert the box over a steam jet and steam thoroughly.

The report concludes with a definitive, practical triumph for the use of local California resources:

Since the completion of the investigational work, approximately 40,000 white fir boxes have been used with entire satisfaction for shipping butter at the University Farm.

What It's Really About

At its core, this book is about the power of scientific inquiry to overcome tradition and regional prejudice. It asks whether empirical evidence can replace commercial habit, and how technical innovation—such as specific paraffining techniques—can unlock the value of underutilized natural resources. The text acts as an argument for local sustainability, demonstrating that domestic materials, when handled with technical precision, can match the performance of established imports. It explores the delicate relationship between the container and the contained, positing that quality is not just a matter of the raw product, but a consequence of the entire industrial process. The inquiry beneath the data is the pursuit of efficiency: how to ship a perishable good across the state without losing its value.

Why Read It Today

Readers with an interest in agricultural history, industrial design, or the evolution of food packaging will find this book strangely compelling. It offers a clear, honest window into a time when the University of California played an active, hands-on role in shaping the state's commercial landscape. The prose is utilitarian and devoid of modern fluff, which makes the density of the technical information feel grounded and authentic.

However, it is a specialized report. Its length is mostly comprised of data tables and lists of other university publications, which may feel dry to a casual reader who is not interested in the nuances of 1920s butter storage. The attitudes expressed are those of a pragmatic, early-20th-century scientist—focused entirely on yield, cost, and efficiency. It does not contain dramatic conflict or narrative character arcs, but it succeeds in capturing the quiet, methodical process of technical progress. What stays with you is the realization that behind every common product on a grocery shelf, there is a history of rigorous, often overlooked experimentation aimed at making the logistics of daily life a little more efficient.