Table 4.
The critical relative humidity and temperatures for various fruits and vegetables
| Products | Temperature °C | Relative humidity % | Maximum storage time Recommended (ASHRAE handbook 1998) | Storage time in cold stores for vegetables in tropical countries |
|---|---|---|---|---|
| Apple | 0–4 | 90–95 | 2–6 m | – |
| Beetroot | 0 | 95–99 | – | – |
| Cabbage | 0 | 95–99 | 5–6 m | 2 m |
| Carrots | 0 | 98–99 | 5–9 m | 2 m |
| Cauliflower | 0 | 95 | 2–4 w | 1 w |
| Cucumber | 10–13 | 90–95 | ||
| Eggplant | 8–10 | 90–95 | ||
| Lettuce | 1 | 95–99 | ||
| Leeks | 0 | 95 | 1–3 m | 1 m |
| Oranges | 0–4 | 85–90 | 3–4 m | |
| Pears | 0 | 90–95 | 2–5 m | |
| Pumpkin | 10–13 | 70–75 | ||
| Spinach | 0 | 95 | 1–2 w | 1 w |
| Tomatoes | 13–21 | 85–90 |