Refrigeration can slow many deterioration processes; how long a product remains safe or suitable depends on the product, its starting condition and its time-temperature history.
Product data instead of a general factor
Do not use a universal multiplier to convert a temperature rise into shelf life. Product category, packaging, starting date and manufacturer storage instructions can change the result.
Review the full profile
From the logger, note peaks, their duration, sensor location and data gaps. An average can hide short excursions; an air reading may not represent product temperature.
For an excursion, compare the lot, measurement and time window with the applicable product specification. Leave acceptance, use or disposal to the authorised quality assessment.
Make comparisons repeatable
For a complaint, record product type, lot, packaging, instrument and assessment method. Compare results with validated shelf-life work or manufacturer data for that product.
Place temperature records, door openings and waiting events on one timeline. This can help locate risk; it does not prove the number of days remaining.
