Colour Interval Value Publication Food Name Reference
[ 0.00, 0.30 ) 0.00 mg/100 ml Herbal teas - No 76 - Peppermint tea - Safeway, Inc. Friedman M., et al (2005) Distribution of catechins, theaflavins, .... Journal of Food Science 70:C550-C559
[ 0.30, 0.61 ) 0.60 mg/100 ml Herbal teas - No 77 - Peppermint herbal - The Stash Tea Co., Oregon Friedman M., et al (2005) Distribution of catechins, theaflavins, .... Journal of Food Science 70:C550-C559