5. Comparison of Absorbance Measurements in Food Samples With and Without Ethanol Extraction.

food samples	absorbance (extracted with 60% ethanol)	gluten contentethanol extraction (mg/mL)	absorbance (dissolved in water)	gluten contentwater extraction (mg/mL)
all purpose flour	0.118	1.901	0.3235	5.360
rice flour	0.086	1.362	0.2835	4.686
gravy	0.131	2.119	0.2115	3.474
gluten-free gravy	0.089	1.412	0.2085	3.424
whole milk	0.09	1.429	0.1355	2.195
rice milk	0.089	1.412	0.1985	3.256
almond milk	0.077	1.210	0.1865	3.054
beer	0.427	7.103	0.439	7.304