| 摘要 |
The invention relates to a tubular, single or multi-layered polyamide and/or copolyamide-based food casing and/or including a polyamide and/or copolyamide-based inner layer. The water-vapour permeability of the casing is less than 30 g/m<SUP>2 </SUP>d. The surface tension of the inner side is greater than 28 dyne/cm<SUP>2</SUP>, preferably 35-45 dyne/cm<SUP>2</SUP>. The inside of the casing is impregnated with liquid smoke without the addition of a browning agent and the liquid smoke is practically totally absorbed by the casing. The casing is particularly useful as synthetic sausage skin, particularly for browing, cooking or roasting. |
