A simple technique to make busy lives easier is
to cook extra food at one meal for future meals. This extra meal needs to be
preserved in a manner to be kept fresh for consumption, thus freezing of food
is an appropriate method to do so. One
easy method of freezing foods, including liquid foods such as soups and stews,
is to freeze them in freezer bags.
The steps for
successful freezing are as below:
STEP 1: Cool
foods "slightly" at room temperature before refrigeration:
It is not necessary for a food to be
completely cool before it is refrigerated. But slight cooling can be achieved by
placing a shallow container of food on a cooling rack to allow air
to circulate all round the pan for about 20 to 30 minutes and by limiting
the depth of food to 2 inches.
STEP 2:
Complete cooling of foods in the refrigerator:
Cool foods to refrigerator temperature before bagging
them for your freezer. Loosely cover food while refrigeration so as to allow
heat to escape and protect the food from accidental contamination from other
foods during cooling. It is OK to refrigerate foods while they're still warm.
STEP 3: Pack
foods into freezer bags:
Use "freezer" bags, not "storage"
bags for storing food in the freezer. Freezer bags are thicker than storage
bags and will keep the food fresh longer. Speed freezing and hasten thawing by
freezing foods in a thin, flattened shape in freezer bags. Flatter packages
also will stack better in your freezer.
To avoid getting food on the outside or stuck
in the closure of the freezer bags, use a wide-mouth funnel. Place the freezer
bag in a container such as a quart measuring cup. Standing the bag upright also
helps if you are filling the bag with a more liquid-type food. You may wish to
double-bag liquids to prevent leakage. Open the top of bag and enclose the
edges around the bottom of the wide-mouthed funnel. Add food, in desired
amount, through the funnel. Hold edges of the bag in place as needed.
OR,
use some type of scoop - such as a measuring cup with a handle - to transfer
the food to the freezer bag.
STEP 4: Label
foods:
To avoid confusion between types of food,
label foods using freezer tape, gummed freezer labels or permanent marking
pens/crayons. The label should include:
·
name of food;
·
packaging date;
·
number of servings or amount;
· Additional helpful information, such as form of food
(sliced, chopped, etc.), any special ingredients.
It is helpful to place filled freezer bags on
a flat surface in your freezer, such as a metal pan. Do not stack
freezer bags until frozen so they will freeze faster. After they are
frozen solid, the bags may be removed from the pan and stored, stacked,
directly on the freezer shelf. Or turn them on their edge and store them
vertically.
STEP 5: Thaw
and cook frozen foods
DO NOT thaw perishable foods at room
temperature. If perishable foods are left at room temperature too long,
bacteria may grow and produce heat-resistant toxins that can cause food-borne
illness. Cooking may not be able to destroy these toxins. It's best to plan for
slow, safe thawing in the refrigerator. If there is the possibility a thawing
package might leak, you may want to thaw it on a plate or a pan. If food is
thawed in the microwave, finish reheating it right away. Unlike food thawed in
a refrigerator, microwave-thawed foods reach temperatures that encourage
bacterial growth. Cook immediately to kill any bacteria that may have developed
and to prevent further bacterial growth:
- Food may be transferred from a freezer bag to a microwave
safe container for thawing in the microwave.
- If the freezer bag manufacturer says it is OK to thaw
foods directly in their freezer bag, follow manufacturer's directions for such
things as venting, recommended heat settings, types of foods suitable for
microwave-thawing, etc. for that specific bag. Also, follow manufacturer's
directions for your microwave.
- While you may be able to satisfactorily defrost food in
some freezer bags in the microwave, DO NOT cook the food in the freezer bag - unless recommended by the microwave manufacturer. At the higher temperatures
used in the microwave cooking process, it is possible for the plastic to reach
melting temperatures.
Following
are some important tips for freezing:
- When making extra food at one meal for future meals, the
portion to be served later should be separated
and refrigerated before serving the food on the table. It also helps keep
food safe.
- Freeze foods
in portion sizes you'll need for future meals. For example, if there are
two in your family and you each eat a cup of rice for a meal; freeze in two-cup
portions.
- Keep a
temperature check in your refrigerator and in your freezer to assure that
the food stays at 40° F or lower (refrigerator) and 0° F or lower (freezer).
- Never re-freeze anything that's been frozen. Even if the food was frozen
raw and then cooked, to be extra safe it still shouldn't be re-frozen.
- Make sure to wrap foods properly or put them in
sealed containers before freezing, otherwise the food can get freezer-burn.
- Refrigerate
perishable foods in less than two hours (or one hour in temperatures above 90 F) of being at room temperature. As a
general rule, eat perishable foods within two days or freeze them. Perishable
foods include meat,
poultry, fish, eggs, tofu, dairy
products, pasta, rice,
cooked vegetables, fresh, peeled
and/or cut fruits and vegetables
- If you are unsure of
how long something has been frozen or are a bit wary of something once
defrosted, don't take any chances, throw
it away.
- You get out
what you put in. Don't freeze old food because you don't want to waste it; the
point of freezing is to keep food as its prime. Freeze fresh to retain that quality of food.
- Label the frozen food so
that it’s easier to identify while picking it out for thawing. Use different
colour markers, labels and abbreviations easier for you to understand. Also
mention the date of freezing on the label.
- An icy freezer is an inefficient one, so make sure you defrost your freezer if ice builds up.
Don't worry about the food; most things will remain frozen in the fridge for a
couple of hours while the freezer defrosts.
- If there has been a power cut or you think the freezer
has been turned off at some point, don't open the door. Foods should remain
frozen in the freezer for about 24 hours, leaving you time to get to the bottom
of the problem.
- Some dishes can be cooked
straight from frozen. When cooking food from frozen, use a lower
temperature to start with to thaw, then increase the temperature to cook. Foods
include: Soups, stews, casseroles, bakes and
potato-topped pies. Thin fish fillets, small fish, sausages, burgers, and
seafood if added at the end of a hot dish. Foods that should never be cooked from frozen are raw
poultry and large joints of meat.
Foods
which are not freezer friendly:
· Raw eggs in the shells will expand and crack.
· Hard-boiled eggs go rubbery.
· Vegetables with high water content, such as lettuce,
cucumber, bean sprouts and radishes, go limp and mushy.
· Soft herbs, like parsley, basil and chives, go brown.
· Egg-based sauces, such as mayonnaise, will separate and
curdle.
· Plain yogurt, low-fat cream cheese, single cream and
cottage cheese go watery.
Foods
great to freeze:
· Butter and margarine can be frozen for 3 months.
· Grated cheese can be frozen for up to 4 months and can be
used straight from the freezer.
· Most bread, except crusty varieties such as French bread,
will freeze well for up to 3 months. Sliced bread can be toasted from frozen.
· Milk will freeze for 1 month. Defrost in the fridge and
shake well before using.
· Raw pastry will freeze for 6 months and takes just 1 hour
to thaw.