Comparison of Woods for Butter Boxes

When the Pacific Coast’s supply of spruce dwindled during the war, dairy producers faced a sudden rise in the cost of the wooden containers used for 60‑pound butter boxes. Seeking a local alternative, researchers turned to California’s abundant white fir and the modest stands of cottonwood, despite a prevailing belief that these woods would lend an unwanted taste to the butter. The study opens by outlining the economic pressures on both the lumber and creamery sectors, setting the stage for a systematic comparison of the three species.

The authors detail a series of controlled experiments in which butter cubes were packed in unseasoned, paraffined, and parchment‑lined boxes of each wood type. Over six months of cold‑storage testing, the butter was scored regularly to detect any flavor shifts or quality loss. The data reveal subtle differences in how each wood and treatment interacts with butter’s volatile fats, offering clear guidance on which combinations preserve taste most effectively.

Beyond the laboratory results, the bulletin highlights the practical benefits of adopting native woods—lower material costs for creameries and a new market for otherwise underused timber. Its concise, data‑driven approach makes the findings accessible to growers, dairy managers, and anyone interested in the intersection of agriculture and resource management.