Cooked foods and leftovers should always be kept in airtight containers and refrigerated. Any type of food, whether raw or cooked, should never be left for more than four hours at room temperature. Food poisoning becomes a risk when food is left out, especially in hotter temperatures.
Single yarns of the spun type, composed of many short fibres, require twist to hold them together and may be made with either S-twist or Z-twist. Single yarns are used to make the greatest variety of fabrics.
Cotton is what the fibres are made from. Flannel is the way the fibres are woven together. Some cottons are flannels, and some flannels are cottons. Cotton can be woven (or knit) into different types of cloth. Flannel fabric can be made from different fibres (e.g. wool). Views Â· View Upvotes.