Consumer handling 259 14-149°C 13-13.9°c 12-129°C 11-119°C 10-109° 9-9.9°c 8-89°c 7-79°C 6-69°C 5-59°C 4-4.9°C 1-19°c 1to-0.1° 1°C Fig. 12.6 Overall mean temperatures for all refrigerators in survey(source: Evan a.,1991) Table 12.4 Position of highest temperature within re Highest mean Lowest mean temperature temperature Middle 45. Bo 22.0 34.6 Source: Evans et aL, 1991 (80.3%)was spent between 3 and 8.9C. Only small amounts of time were spent above 9C(Fig. 12.7). However, only 4 refrigerators(1.6%)in the whole survey operated below 5C during all the monitoring period and 33.3% of refrigerators spent all their time above 5C. A further analysis showed that in 69.9% of refrigerators the warmest place was in the top and in 45. 1% the coolest place was in the middle(Table 12. 4). However, the top of the refrigerato for was not always the warmest and the bottom was not always the coldest place(Table 12.5, Fig. 12.8) The mean temperature range within a refrigerator was found to vary between refrigerator types. Ice box refrigerators had the smallest range(80.3%) was spent between 3 and 8.9 °C. Only small amounts of time were spent above 9 °C (Fig. 12.7). However, only 4 refrigerators (1.6%) in the whole survey operated below 5 °C during all the monitoring period and 33.3% of refrigerators spent all their time above 5 °C. A further analysis showed that in 69.9% of refrigerators the warmest place was in the top and in 45.1% the coolest place was in the middle (Table 12.4). However, the top of the refrigerator was not always the warmest and the bottom was not always the coldest place (Table 12.5, Fig. 12.8). The mean temperature range within a refrigerator was found to vary between refrigerator types. Ice box refrigerators had the smallest range Consumer handling 259 14–14.9°C 13–13.9°C 12–12.9°C 11–11.9°C 10–10.9°C 9–9.9°C 8–8.9°C 7–7.9°C 6–6.9°C 5–5.9°C 4–4.9°C 3–3.9°C 2–2.9°C 1–1.9°C 0–0.9°C –1 to –0.1°C –2 to –1.1°C –3 to –2.1°C –4 to –3.1°C –5 to –4.1°C 0 5 10 15 20 25 Percentage Fig. 12.6 Overall mean temperatures for all refrigerators in survey (source: Evans et al., 1991). Table 12.4 Position of highest temperature within refrigerators investigated Position % of refrigerators Highest mean Lowest mean temperature temperature (°C) (°C) Top 69.9 20.3 Middle 8.1 45.1 Bottom 22.0 34.6 Source: Evans et al., 1991