Table 3.

Statistically significant (at p ≤ 0.05) correlation (r) between elements in coffee: (a) Aeropress, (b) drip, (c) espresso, (d) simple infusion, and (e) French press.

(a) Aeropress
Correlations (r) between Elements
	Positive	Negative
Ca and	Zn; Co	Fe; Cr; Ni
Mg and	K; Na; Co; Sr; Si	Fe; Cr; Ni; Al
Mn and	Zn; Al	P; Na; Sr; Si
P and	K; Na; Sr; Si	Zn; Al
K and	Na; Co; Sr; Si	Fe; Cr; Ni; Al
Zn and		Fe
Fe and	Cr; Ni	Co
Na and	Co; Sr; Si	Cr; Al
Cr and	Ni; Al	Co; Sr; Si
Ni and		Co
Co and	Sr
Sr and	Si	Al
Al and		Si
(b) Drip
Ca and	Mg; Mn; P; K; Na; Co; Al; Si
Mg and	Mn; P; K; Na; Co; Sr; Al; Si
Mn and	P; K; Na; Co; Al; Si	Zn; Ni
P and	K; Na; Co; Sr; Al; Si
K and	Na; Co; Sr; Al; Si
Zn and	Fe; Cr; Ni
Fe and	Cr; Ni; Sr
Na and	Co; Al; Si
Cr and	Ni; Sr
Co and	Sr; Al; Si
Sr and	Al; Si
Al and	Si
(c) Espresso
Ca and	Mg; Mn; P; K; Na; Ni; Sr; Si	Zn; Cr; Co; Al
Mg and	Mn; P; K; Na; Ni; Sr; Si	Zn; Fe; Co; Al; Cu
Mn and	P; K; Na; Ni; S; Si	Zn; Cr; Co; Al
P and	K; Na; Ni; Sr Si	Zn; Fe Co; Al Cu
K and	Na; Ni; Sr; Si	Zn; Fe; Cr; Co; Al
Zn and	Cr; Al	Na; Ni; Sr; Si
Fe and	Co; Cu	Na; Sr
Na and	Ni; Sr; Si	Cr; Co; Al
Cr and	Al (r = 0.875)	Ni; Si
Ni and	Sr; Si	Al
Co and	Al; Cu	Sr; Si
Sr and	Si	Al
Al and		Si
(d) Simple infusion
Ca and	Zn; Co	Fe; Cr; Ni
Mg and	K; Na; Co; Sr; Si	Fe; Cr; Ni; Al
Mn and	Zn; Al	P; Na; Sr; Si
P and	K; Na; Sr; Si	Zn; Al
K and	Na; Co; Sr; Si	Fe; Cr; Ni; Al
Zn and		Fe
Fe and	Cr; Ni	Co
Na and	Co; Sr; Si	Cr; Al
Cr and	Ni; Al	Co; Sr; Si
Ni and		Co
Co and	Sr
Sr and	Si	Al
Al and		Si
(e) French press
Ca and	Cr; N; Sr
Mg and	P; K; Na; Ni; Si; Cu
Mn and	P; K; Na	Zn; Fe; Cr; Sr
P and	K; Na; Ni; Si; Cu	Zn; Fe; Al
K and	Na; Ni; Si; Cu	Al
Zn and	Fe; Cr; Sr; Al	Na
Fe and	Cr; Al
Na and	Ni; Si; Cu
Cr and	Co; Sr; Al
Ni and	Co; Si; Cu
Co and	Sr
Sr and	Al
Si and	Cu