Table 8.
Total metals (mg/L) leached from various cookware under acidic, basic, and neutral conditions.
| Acetic Acid | Sodium Bicarbonate | Distilled Water | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Time (h) | Time (h) | Time (h) | ||||||||||
| Types of Condition | New | Old | New | Old | New | Old | ||||||
| 0.5 | 1 | 2 | 1 | 0.5 | 1 | 2 | 1 | 0.5 | 1 | 2 | 1 | |
| Non- anodized | 1125.31 ± 9.92 a | 1573.86 ± 11.52 a | 2178.55 ± 14.57 a | 894.87 ± 6.92 a | 8.75 ± 1.66 a | 21.425 ± 1.34 a | 79.78 ± 5.50 a | 5.47 ± 0.56 a | 1.75 ± 0.07 a | 2.41 ± 0.13 a | 3.145 ± 0.47 a | 1.84 ± 0.18 a |
| Anodized | 154.13 ± 1.87 b | 294.42 ± 3.42 b | 541.42 ± 6.81 b | 803.58 ± 7.76 b | 3.95 ± 0.84 b | 8.10 ± 0.72 b | 14.01 ± 1.26 b | 4.038 ± 0.45 a | 0.177 ± 0.02 b | 0.66 ± 0.072 b | 1.43 ± 0.05 b | 1.41 ± 0.11 a |
| Stainless steel | 18.261 ± 1.23 c | 24.73 ± 1.36 c | 58.82 ± 2.77 c | 35.33 ± 4.31 c | 4.44 ± 0.32 b | 7.92 ± 0.21 b | 11.56 ± 0.32 c | 5.52 ± 0.25 a | 0.12 ± 0.05 b | 0.42 ± 0.05 b | 1.054 ± 0.1 b | 0.51 ± 0.1 b |
| Copper | 5.92 ± 0.47 d | 9.79 ± 0.45 d | 16.91 ± 0.28 d | 12.34 ± 1.23 d | 2.98 ± 0.55 c | 6.85 ± 0.67 c | 9.49 ± 0.87 d | 5.09 ± 0.41 a | 0.15 ± 0.05 b | 0.24 ± 0.03 c | 0.421 ± 0.07 c | 0.084 ± 0.04 c |
Mean values with different lowercase letters in the same columns for the same time point are significantly different (p < 0.05), ordered according to a > b > c > d.