Table 1.
S. no. | Samples (% alcohol)∗ | Physicochemical properties | Raw materials | Production process |
---|---|---|---|---|
1 | Tella (2.9 ± 0.3), Korefe (4.6 ± 0.4) | Dark brown in color, with pH 3.56 ± 0.02 and 4.28 ± 0.02 | Kita (a thin, 5–10 mm thick, pancake-like bread), enkuro (a dark brown toasted flour), bikil (germinated grain), and powdered gesho (Rhamnus prinoides) [25, 26] | A four-phase fermentation for 10–12 days [25, 26] |
2 | Tej (9.1 ± 0.3) | Yellow, sweet, effervescent, and cloudy, with pH 3.65 ± 0.01 | Honey or mixture of sugar with honey and leaves of gesho (Rhamnus prinoides) [25, 27] | Mixing boiled must with gesho (Rhamnus prinoides) and unboiled must and then allowing to ferment for 5 days in warm weather or for 15–20 days in colder weather [25, 27] |
3 | Birz (6.5 ± 0.8) | Yellow, sweet, effervescent, and cloudy, with pH 3.40 ± 0.06 | Honey or mixture of sugar with honey [25] | Has a short fermentation period, usually overnight [25] |
4 | Borde (1.8 ± 0.4) | Opaque, effervescent, and whitish-grey to brown colored with a thick consistency and a sweet-sour taste, with pH 5.77 ± 0.03 | Unmalted maize (Zea mays), barley (Hordeum vulgare), wheat (Triticum aestivum), finger millet (Eleusine coracana), sorghum (Sorghum bicolor), and/or tef (Eragrostis tef) and their malt; additional ingredients garlic, fresh chili (Capsicum minimum), ginger, and salt [25, 28, 29] | A four-phase fermentation for less than 4 days [25, 28, 29] |
5 | Keribo (1.7 ± 0.3) | Dark brown colored, with pH 3.72 ± 0.03 | Unmalted roasted barley (Hordeum vulgare), sugar, and yeast [30] | Has a short fermentation period, usually overnight [30] |
∗% alcohol was determined by the method in [22].