How should temperatures be controlled in a storage area?

• A. Keep a single thermometer and rely on memory.
• B. Ignore deviations if not severe.
• C. Use color-coded stickers only.
• D. Maintain specified ranges with calibrated thermometers, temperature logs, and alarms for deviations.

Answer: (D)

Controlling temperatures in storage relies on accurate measurement, ongoing monitoring, and documented records. Using calibrated thermometers ensures the readings reflect actual temperatures, not just what we think they are or what a faulty device might show. Keeping a temperature range that matches the stored product’s requirements is essential, and having a log of readings over time creates a traceable record that you can review to confirm compliance and to spot trends or recurring issues.

Alarms or alert systems are important because they provide immediate notice if temperatures drift outside the approved range. Quick detection enables timely corrective actions before any quality or safety problems arise, such as moving products, adjusting cooling, or quarantine procedures.

Single thermometers are unreliable due to drift or placement issues, and relying on memory means you’ll miss deviations or forget to act. Ignoring deviations is unsafe because even short excursions can compromise product safety. Color-coded stickers alone don’t measure temperature or document readings, so they can’t verify that temperatures stayed within the required range or that actions were taken.

So, combining calibrated instruments, documented temperature logs, and alert systems gives accurate, timely, and auditable control of storage temperatures, supporting product quality and regulatory compliance.