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Table 3 Aluminum uptake and the resultant percentage of TWI

From: Migration of aluminum from food contact materials to food—a health risk for consumers? Part II of III: migration of aluminum from drinking bottles and moka pots made of aluminum to beverages

Coffee Test conditions Mean concentration (mg/L) Aluminum uptake adult (mg/week)b Percentage to TWI adult
First brew Al-pot (n = 9) 0.564a 1.97 2.81
Stainless steel pot (n = 3) 0.150 0.525 0.750
Third brew Al-pot (n = 9) 0.133a 0.469 0.670
Stainless steel pot (n = 3) 0.018 0.063 0.090
Sixth brew Al-pot (n = 9) 0.795a 2.79 3.98
Stainless steel (n = 3) 0.278 0.973 1.39
  1. aThe values shown are the arithmetic means of the results of three repetitions for each of three brands of moka pot
  2. bThe weekly uptake is based on an adult weighing 70 kg and a daily uptake of 500 mL coffee over a time period of 1 week (7 days)