Monday, September 17, 2012

Bsc 1st year-Stocks

                                                          Stocks-Notes(Continued)

 Stocks are cooking liquids made of vegetable ,chicken or meat bones which are used as cooking liquids instead of water.

  • Stocks contain four essential parts: a major flavoring ingredient, liquid, aromatics, and mirepoix:
    • The major flavoring ingredient consists of bones and trimmings for meat and fish stocks and vegetables for vegetable stock.
    • The liquid most often used in making stock is water.
    • Aromatics are herbs, spices, and flavorings that create a savory smell; these include   bouquet garni.
    • Mirepoix is a mixture of coarsely chopped onions, carrots, and celery that is used to flavor stocks, soups, and stews.
  • There are many types of stock:
    • White stock: A clear, pale liquid made by simmering poultry, beef, or fish bones. Brown stock:
    • An amber liquid made by first browning/roasting poultry, beef, veal, or game bones. Fumet:
    • A highly flavored stock made with fish bones. Court bouillon:
    • An aromatic vegetable broth. Glace:
    • A reduced stock with a jelly-like consistency, made from brown stock, chicken stock, or fish stock.
    • Remouillage: A weak stock made from bones that have already been used in another preparation. It is sometimes used to replace water as the liquid used in a stock.
     

    • Bouillon: The liquid that results from simmering meats or vegetables; also referred to as broth.

  • When using bones for stock, they must be cut to the right size and prepared by blanching, browning, or sweating.
  • Degreasing is the process of removing fat that has cooled and hardened from the surface of the stock by lifting or scraping it away before the stock is reheated. Degreasing stock gives it a clearer look and removes some of the fat content.
  • To cool stock, follow good food safety practices and limit the time the stock spends in the temperature danger zone (TDZ). To cool stock, place it in a clean stockpot, and then put that pot into an ice-water bath. Stir it often. When cooled, place the pot into the cooler. Another option is to break down the stock into smaller portions and place the smaller containers in the cooler. Stir occasionally so that the contents of each container cool at the same rate. Be careful not to put an entire large stockpot of hot stock in the cooler because it will warm the cooler and its contents. Stir occasionally so that the contents of each container cool at the same rate. Be careful not to put an entire large stockpot of hot stock in the cooler because it will warm the cooler and its contents.

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    BASIC STOCKS AND THEIR USES

    The type of stock produced can be varied by the type of bones and vegetables used. Four main types of stock are commonly produced in the kitchen. They include chicken stock, white beef stock, brown beef stock and fish stock.

    Chicken stock (fonds blanc de Volaille)

    Chicken stock is made from chicken bones and mirepoix which gives it a delicate chicken flavour and a light colour. Chicken stock is used in soups and poultry dishes.
    White beef stock (fonds blanc)

    White beef stock is made from beef bones and mirepoix and is used in soups such as broth and consommés

    Brown beef stock (estouffade or fonds brun)

    Brown beef stock is made from beef bones and mirepoix which have first been well browned in the oven. The browning procedure caramelises the natural sugar content in the food giving I a brown colour. The flavour and aroma of the browned ingredients gives a special quality to the stock. Brown beef stock is used for sauces, brown stews, braises and some soups.

    Fish stock (fonds de poisson)

    Fish stock is made from bones and trimmings of lean white fleshed fish. Bones from oily fish are too strong in flavour and should not be used. Fish stocks require less cooking time to extract the flavour from the bones than meat stocks. If over cooked, fish bones give a bitter flavour to the stock and make it unpalatable.

    Special purpose stocks

    Lamb bones have too strong a flavour to be used in general stock production, but may be used in specific lamb dishes like scotch broth or a lamb casserole. Similarly, pork stock, which has a distinctive flavour, is only suitable for pork dishes.
    Dessert stocks and stock syrups

    These are specialised stocks made with water, sugar and flavourings. They are used entirely for the production of desserts.

    COOKING TIMES
    Long, slow simmering of stock is required to draw out the flavour giving substances from the ingredients. The length of time a stock is simmered depends on the type of stock made.
    The following cooking times are recommended for individual stocks, though the times will vary depending on the size of the bones used.
    • Beef stock – 8 hours
    • Chicken stock – 2 hours
    • Fish stock – 20 minutes
    Do not overcook bones as calcium will start to leach from them and the stock will become cloudy and taste bitter.

    STORAGE

    · Stocks may be stored for up to one week in the refrigerator or cool room within the temperature range of 1C degrees to 4C degrees.

    · Stocks may be stored for up to three months in the freezer

    · It is important to completely cool the stock before placing it in the refrigerator, cool room or freezer. Otherwise heat is maintained and warms the fridge/freezer which speeds up the deterioration of its contents.

    · To speed the cooling process, the stock may be placed into small containers which can be put into iced water. The stock is then stirred to evenly reduce the heat.

    · Use a cartouche when storing stocks. This prevents foreign objects falling into the stock.

    · Label and date all stored stocks.

    IMPORTANT POINTS WHILE MAKING STOCKS:

    · Stock is a foundation ingredient for a wide variety of culinary dishes.

    · Dishes made from stock are only as good as the quality of the stock used.

    · Bones, vegetables and water are the three main ingredients used in stock production.

    · Carrots, onions and celery (mirepoix) enhance the flavour of a stock.

    · Salt is never used as an ingredient in stocks.

    · Slow simmering draws out the maximum flavour from the ingredients.

    · Stocks may be refrigerated for up to one week and frozen for up to three months.

    · Completely cool a stock before placing it in the refrigerator.






     
     

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