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Table 1 List of the Italian commercialized black and green tea packages analysed in this study (N and V samples, respectively). For each accession is reported information about the marketing quality (high, medium and low), sales network (D = discount supermarket; H = herbalist’s shop; S = supermarket; P = drugstore) and the price (ϵ) [(A), <1ϵ; (B), <1 < ϵ < 2; (C), 2 < ϵ < 4; (D), 4 < ϵ < 6; (E), >6ϵ]. Numbers of filters/package, gr/filter, ingredient and infuse protocol preparation have been copied from the original package

From: Comparative assessment of the quality of commercial black and green tea using microbiology analyses

Code Marketing quality‡ Sales network Price n° filters/
package
gr/filter Label information Infusions instructions:
H2O°C, min**
Black teas
N1 Medium H D 2 1.5 Organic black teas leaves of Camelia sinensis (L.) Kuntze (100%) Bo., 5-8
N2 Medium-good P, H D 20 2 Tea leaves [Camellia sinensis (L.) Kuntze] Bo., 5-6
N3 Good S B 25 1.5 Black tea, aromas 100, 2-3
N4 Low-medium S C 15 2 Not reported Bo., 3
N5 Good P, H C 20 1.75 Black certified tea 100% 80, 1-3
N6 Good S B 25 1.5 Tea 100, 3-5
N7 Good S C 25 1.5 Decaffeinated tea 100, 3-5
N8 Good S B 25 1.5 Not reported Bo., 2-3
N9 Good S C 25 2 Black tea (94%), lemon aroma (6%) 100, 3-4
N10 Low S B 25 1.75* Black tea (100%) Bo., 3-5
N11 Good S D 23 1.5 Decaffeinated black tea, caffeine <0.1% 100, 3
N12 Low S B 25 1.7 Black tea Bo., 3
N13 Low S B 25 2* Black tea (95%), natural lemon aroma (5%) 90-100, 3
N14 Low S B 25 1.75* Black tea leaves Bo., 3-5
N15 Medium H C 20 2 Decaffeinated organic black tea, caffeine <0.1% 100, 3-5
N16 Good S C 14 5† Sugar, acidifier (citric acid), decaffeinated tea extract, aromas, lemon juice powdered (0.5%). Gluten free N.d.
Green teas
V1 Good P, H E 20 2 Pure leaves of green tea (Camelia sinensis Kuntze) Bo., 5-7
V2 Medium P, H E 20 2 Green tea leaves (Camelia sinensis) (99%), bergamot essential oil (1%) Bo., 5
V3 Medium H D 20 1.5 Organic green tea leave [Camellia sinensis (L.) Kuntze] (100%) Bo., 5-8
V4 Medium P, H D 20 1.8* Green tea leave Bo., 3-5
V5 Medium-good P, H D 20 2 Unfermented organic tea (Camellia sinensis L.) leave Bo., 5-6
V6 Medium H C 20 1.75 Green tea certified by Fairtrade 80, 3
V7 Medium H D 20 2* Not reported Bo., 3-5
V8 Good S C 25 1.3* Green tea (100%) 90, 2-3
V9 Good S C 10 1.3* Green tea, aromas, peel of citruses (2.1%: grapefruit, lemon, lime, orange) 90, 2-3
V10 Good S C 10 1.3* Green tea, aromas, spices 2% (anise, cinnamon, liquorice) 90, 2-3
V11 Good S C 10 1.3* Green tea, aromas, mint (7.9%) 90, 2-3
V12 Good S C 25 1.6 Green tea 75, 3
V13 Low S B 25 1.75* Green tea Bo., 3-5
V14 Low S B 25 2* Organic green tea 80, 3
V15 Low D A 20 1.75 Green tea Bo., 3-5
V16 Medium S A 125†† Sugar, acidifier (citric acid), green tea soluble extract, aromas, ginseng soluble extract N.d.
  1. ‡, value determined by a questionnaire conducted on 25 people (13 females and 12 males); *, value deducted; **, between a range of two values, the average has been used; †, soluble; ††, soluble power for 1.5 L of infusion; Bo., boiling water, temperature used of 90 °C; N.d., no datum