Q: I am preparing cakes for the holidays how can I determine how many people a cake will serve?

A: The following is a chart of basic cake yields: Cake Yields Size and Kind Servings 8- or 9-inch one-layer round cake 8 8- or 9-inch two-layer round cake 12 to 16 8- or 9-inch square cake 9 13x9x2-inch rectangular cake 12 to 16 10x4-inch angel food or chiffon cake 12 to 16 12- cup bundt cake or pound cake 16 to 24.

Q: What is condensed sweet milk?

A: Sweet, condensed milk is made when about half of the water is re- moved from whole milk and sweetener is added. It is used in recipes for bars, candies and pies.

Q: Can you tell me exactly what prawns are?

A: The word prawn is used to describe many types of shellfish. Prawn frequently is the name used to refer to large shrimp. It's also the name of a six to eight inch long shellfish that's part of the lobster family and another shellfish that looks like a cross between a shrimp and a lobster.

Q: How long will fresh vegetables last in the refrigerator?

A: Different vegetables require different temperature and humidity levels for proper storage.

.. Turnips: For storage, wash roots; trim tops to 1/2 inch, place in perforated plastic bags and store in refrigerator, cold moist cellar or pit. Storage life is two to four months.

.. Broccoli: Store in perforated plastic bags for up to one week in the refrigerator.

.. Cabbage: Store cabbage in refrigerator, cold cellar or outdoor pit in plastic bags for up to two months.

.. Collards, kale, mustard, and spinach: Greens do not store well, but may be kept in plastic bags in the refrigerator for up to two weeks.

Q: How many gallons of oil come from a ton of peanuts? How much meal is left after they are crushed?

A: The oil extraction from a ton would yield about 667 pounds of oil and about 720 pounds of peanut meal.

Q: How can I know if a water storage container is food grade?

A: Milk containers are not recommended because they do not seal well. Containers such as 2-liter soda bottles with tight fitting screw-cap lids are better choices. If your local water is treated commercially by a water treatment facility, you do not have to treat the water with bleach or other products before storing. Be sure to change and replace stored water every six months or more frequently. Commercially prepared "spring" or "drinking" water should be kept in its original sealed container. It should be changed and replaced at least once a year. Once opened, however, it should be used.

If you have questions or problems with services or products regulated by the Georgia Department of Agriculture you may write Consumer Services, 19 Martin Luther King Drive, Room 224, Atlanta, Georgia 30334 or toll free at 1-800-282-5852 (state wide).