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WEEK 2
NOURISHING BEVERAGES.
Nourishing beverages are drinks which have high food value i.e. rich in CH2O, fats and proteins e.g. cocoa drink, egg drinks, milk drink and cereal drinks. Milk and egg beverages are very nourishing and ideal for invalids, children and nursing mothers as they are rich in body building materials. Examples are milk shake, ice cream, orange milk shake, coffee milk shake, coffee and cream milk shake, egg nog, milk and honey.
Cocoa drinks contain stimulating alkaloids but in less amount than tea or coffee. It also contains a considerable amount of fats, carbohydrate, protein and small amount of minerals. E.g. lemon grass, tea, beef tea and coffee. Coffee and tea contain caffeine and alkaloids which stimulates the central nervous system, lessen fatigue and the desire to sleep. They contain some volatile oils which give the infusion the characteristic flavor and also contain tannin which when liberated in hot H2O, give the characteristics bitter taste. Tannin also affects the digestion of protein by toughening the protein food nutrient causing digestive offset and the desire to sleep.
Excessive intake of coffee especially may be harmful. Tea is mild and harmless stimulant, when sugar is added, it provides a supply of energy to the body, and it contains a small amount of riboflavin. Tea and coffee do not provide any nutritional value but when milk and sugar are added, they provide energy and some nutrients.
PREPARATION OF COFFEE
The following methods can be used in the preparation of coffee.
- Infusion.
- Percolation.
- Filtration.
- Dissolving.
REFRESHING BEVERAGES: refreshing beverages include commercial carbonated drinks and fruit juices and drinks. The fruit juices are prepared from fresh fruits such as oranges, pineapples, lemon etc. they can be made into concentration of juices or diluted to taste. They
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