Content
Citation(s) & Footnote(s)
Book(s)No access
Scope And Argument
Printed pp. 196–217; scan PDF pages 201–221 and 245.
Apparent yield and process performance are meaningful only when measurements, inventories, losses and product boundaries are explicit.
Literature Note
The operational chapter distinguishes sugar conversion, alcohol recovery and finished output, although some numerical examples need correction. Original- and final-gravity formulas estimate fermentation alcohol under assumptions; they are not direct assays for every matrix. Sampling, temperature correction, calibration and units affect interpretation.
Absolute alcohol is volume multiplied by ABV as a decimal, with measurements on a compatible temperature basis. A proof gallon is a US customary reporting quantity tied to 50% ABV at its specified reference conditions; it is not simply any gallon of product. The printed gravity example changes one denominator input, and the grain-cost example should yield £112,500 from 375 tonnes at £300 per tonne, not £112,000. These errors reinforce the need for independent calculation.
Stillage and other effluents carry organic load, heat, acidity, solids and potentially metals. Biological oxygen demand and chemical oxygen demand are different measures. Backset, feed use, drying or anaerobic digestion involve different material and energy boundaries; none is universally the best disposal route. More recovered alcohol can also mean a wider cut and a different product, so yield and sensory performance must be reported together.
Cleaning affects carryover, heat transfer and copper condition. Troubleshooting should begin with a baseline, measurements and competing explanations rather than a single visual symptom. Haze, color or smell cannot establish safety. The original Academy record should distinguish observation, hypothesis, action and subsequent result, then link the batch to its incoming and outgoing inventories.
Connections In Our Library
These connections extend the existing production and sensory framework; they do not imply that each linked source has been newly reviewed in full.
Academy Use
Lessons 13–14: original batch decision log, closed alcohol example, and resource-boundary exercise.
Citation
Matt Strickland, Batch Distillation: Science and Practice (Hayward, CA: White Mule Press, 2021), 196–217. Original synthesis and paraphrase; no reproduced chapter text.
