Table 1: Healthy minerals found in teas in this study mg/L.

CalciumDaily minimum requirement 800 mg
 3-4 minute steeping1.2–8.6
 15–17 minute steeping 1.8–12.8
MagnesiumDaily requirement
250–300 mg
 3-4 minute steeping2.6–14.4
 15–17 minute steeping 3.4–16.8
PotassiumDaily requirements
4500–5000 mg
 3-4 minute steeping55–201
 15–17 minute steeping 94–216
PhosphorusDaily requirement of 1250 mg
 3-4 minute steeping3.1–17.9
 15–17 minute steeping 4.2–20.3