Appendix Table A.

Acid concentrations. Means and standard deviations of acid concentration for each roast sample origin (averaged across all roast levels).]

ACID	SAMPLE
	Brazil 1		Brazil 2		Boliva		Kenya 1		Kenya 2
	mean	std	mean	std	mean	std	mean	std	mean	std
	(mg/mL)		(mg/mL)		(mg/mL)		(mg/mL)		(mg/mL)
Chlorogenic	1.163	0.385	0.696	0.291	0.701	0.346	0.763	0.352	0.712	0.326
Quinic	0.712	0.036	0.728	0.116	0.697	0.048	0.635	0.033	0.620	0.019
Citric	0.483	0.083	0.509	0.081	0.409	0.100	0.306	0.071	0.301	0.064
Acetic	0.261	0.032	0.274	0.035	0.303	0.024	0.275	0.042	0.274	0.038
Phosphoric	0.248	0.015	0.276	0.020	0.271	0.008	0.275	0.029	0.269	0.030
Formic	0.163	0.008	0.168	0.009	0.192	0.003	0.170	0.009	0.168	0.005
Lactic	0.164	0.022	0.166	0.036	0.179	0.013	0.164	0.021	0.159	0.018
Malic	0.164	0.030	0.179	0.035	0.135	0.038	0.160	0.044	0.158	0.042
Glycogenic	0.084	0.019	0.095	0.032	0.103	0.020	0.096	0.026	0.093	0.024
Total acids	3.442	0.400	3.091	0.331	2.989	0.367	2.844	0.369	2.754	0.340
Total OAs	2.031	0.106	2.118	0.158	2.016	0.122	1.806	0.105	1.774	0.093