Food Analysis

SOP: Laboratory Waste Disposal Laboratory waste mixes infectious, chemical, and sharps hazards in one small room, and regulators inspect its handling closely. Segregating at the bench, where the waste is born, is the whole game. General laboratory procedures form the foundation every analytical result stands on. Balances, pipettes, glassware, and waste handling rarely make headlines, […]

SOP: Glassware Washing and Sterilization Residue from yesterday’s test becomes today’s contamination. Proper washing and sterilization of glassware is invisible when done right and catastrophic when skipped, especially in trace analysis and microbiology. General laboratory procedures form the foundation every analytical result stands on. Balances, pipettes, glassware, and waste handling rarely make headlines, but errors […]

SOP: Pipette Calibration Procedure Pipettes deliver the volumes that titrations and dilutions depend on, yet they drift with use, drops, and worn seals. Gravimetric calibration with water turns “it feels fine” into a verified number. General laboratory procedures form the foundation every analytical result stands on. Balances, pipettes, glassware, and waste handling rarely make headlines, […]

SOP: Balance Calibration and Use Every quantitative result in the lab divides by a weight, so the balance is the most leveraged instrument in the building. Daily checks with certified weights catch drift before it corrupts a batch of results. General laboratory procedures form the foundation every analytical result stands on. Balances, pipettes, glassware, and […]

SOP: Laboratory Sample Receiving and Logging Every analysis begins at the receiving bench. A mislabeled sample or a broken cold chain here invalidates everything downstream, no matter how good the instruments are. Disciplined receiving is the lab’s first quality gate. General laboratory procedures form the foundation every analytical result stands on. Balances, pipettes, glassware, and […]

SOP: Off-Flavor Detection Protocol Consumer complaints about “chemical,” “cardboard,” or “sour” notes all land on the lab bench as off-flavor investigations. A structured protocol separates true product defects from isolated incidents and traces the taint to its source. Human assessors remain the most sensitive instrument for flavor, texture, and aroma, but they are also the […]

SOP: Shelf Life Sensory Evaluation Microbiology says whether food is safe; sensory testing says whether anyone will still buy it. Stale, oxidized, or texture-degraded products fail on the shelf long before they fail in the lab, so sensory shelf-life studies set the real use-by date. Human assessors remain the most sensitive instrument for flavor, texture, […]

SOP: Paired Comparison Test The paired comparison is the simplest difference test: two samples, one question, “which is sweeter?” Its focused format gives more statistical power per assessor than the triangle test when you know which attribute might differ. Human assessors remain the most sensitive instrument for flavor, texture, and aroma, but they are also […]

SOP: Ranking Test Procedure When the question is “which is sweetest” rather than “how sweet,” ranking tests deliver. Assessors order three or more samples by intensity of one attribute, producing ordinal data that is simple to analyze and easy for panels to perform. Human assessors remain the most sensitive instrument for flavor, texture, and aroma, […]

SOP: Booth Setup for Sensory Labs Sensory booths isolate assessors from each other’s reactions, from kitchen smells, and from visual distractions. A properly set booth turns a noisy room into a measurement instrument. Human assessors remain the most sensitive instrument for flavor, texture, and aroma, but they are also the most variable. Good sensory practice […]