|
|
 |
The Art of Freezing Food
by Cheri Sicard
Freezing is a quick, easy way to store
food for future use. By using the proper methods to prepare your food for
the cold temperatures, you will ensure the highest quality in the finished
product. This can make a big difference between dry unappetizing dishes and
those that are as good as freshly made.
Cold air slows, but does not stop changes and deterioration in food. When
wrapping foods for freezing, always try to get as much air out of the package
as possible and wrap it well so that moisture can't get in. The dreaded "freezer
burn," which will leave your food dried out and tasting funk, occurs when
the moisture on food's surface evaporates. Aluminum foil is a great freezer
wrap as are heavy plastic freezer bags.
Freezing can be a wonderful time saver. You can make all kinds of food in
advance -- such as soups, casseroles, bread doughs and even lasagna -- and
freeze them for future use. If you're going to the trouble to make one dish,
why not make extra and freeze for a night when you're too busy to cook?
Ice Cube Trays
I also like to make huge batches of stock (chicken, beef, fish, vegetable)
and freeze it in small containers so it's ready any time I need it. Another
handy idea is to freeze stock in ice cube trays then keep the cubes in a
Zip-lock® bag (where would we be without Ziplock® bags?) so that
you have small amounts of stock at your fingertips any time you need it.
Ice cube trays work well for egg whites too. If you're making a recipe that
calls only for egg yolks, freeze the leftover whites (one per cube) in an
ice cube tray. Transfer the frozen whites to a Ziplock® bag and they
will be ready any time you have a recipe that uses only egg whites!
Containers
Foil containers are great for freezing foods you will want to re-heat in
an oven, as are freezer safe glass baking dishes (just cover the tops of
them well). Plastic containers work well for freezing liquids, just make
sure you leave a 1/2 inch or so of space for expansion.
Labeling
It's a good idea to put masking tape labels on your frozen foods, unless
you like playing "dinner roulette" and are willing to take a chance on what
might be behind the wrapping. Labels are also necessary for dating the food
you freeze. While freezers will keep food for long periods, they won't keep
forever.
Temperature
Foods that freeze faster will keep better. If your freezer isn't as cold
as it should be (most home freezers should operate at about 0° F) your
food will form larger ice crystals when freezing. Larger crystals mean poorer
texture to your thawed foods.
WHAT TO FREEZE
Baked Goods
In general, the lower the moisture level in your baked goods, the more
successfully they will freeze. Well wrapped bread will keep for about five
months in a freezer. You can also freeze bread dough for a month or two before
baking (same goes for pizza or other yeast doughs). If you know you are making
yeast dough to freeze, add a little extra yeast to your recipe.
Unbaked pie crusts freeze well as do unbaked fruit and meat filled pies (add
a little extra thickening agent to fruit pies destined for the freezer),
so you might want to stock up and get ahead when making these. Unfrosted
cakes will keep for months (again well wrapped is the key). You can freeze
a butter cream frosted cake as well, although other types of icing tend to
separate (especially those made with egg whites and/or brown sugar).
In all cases, cool baked goods completely before freezing or they will end
up soggy.
Prepared Foods
Soups, stews, many sauces (spaghetti sauce comes immediately to mind), unbaked
pies (see baked goods), casseroles, lasagna etc. freeze well. Freezing may
affect some spices, so it's a good idea to check and re-season if necessary
when cooking previously frozen food. As always, wrap and cover well before
freezing.
Eggs
Many people don't know you can freeze eggs. You can store whole eggs in plastic
containers (cracked open and with the whites and yolks stirred together)
or store egg whites and yolks separately. Raw egg yolks will need to be broken
and stirred with either 1/4 teaspoon salt or 3/4 teaspoon sugar for each
1/2 cup of egg yolks or else they will turn to a "gummy" consistency. Cooked
egg yolks, on the other hand, freeze beautifully. The reverse is true of
egg whites: raw are just fine (freeze in ice cube trays, one per cube), but
cooked egg whites will change texture so much they will not be at appealing.
Vegetables
Most vegetables will need to be blanched before freezing them for any amount
of time (if you're going to use the vegetables in question within a week
or so, you can often get away without blanching). After blanching, plunge
the vegetables into cold water and wrap and freeze. Vegetables will keep
in the freezer for about nine months.
Fruits
While frozen fruits do retain their flavor, be aware that the texture of
many frozen fruits will become softer (think of frozen strawberries as opposed
to fresh). Add some sugar (to fruit that will be served uncooked after freezing)
or simple syrup (for fruits that will be cooked after being thawed) as this
helps to retain the fruit's texture when freezing. Fruit will keep in your
freezer for about a year.
Meat
Trim any excess fat from meat before freezing, as the amount of time meat
will stay fresh in a freezer directly correlates to the amount of fat in
it. Less fat equals longer freezer times. Also, the more saturated the fat
(for instance beef has much higher saturated fat than fish) the longer it
will keep). Wrap meat well. (If you're going to use the meat within a week
you can get away with freezing it in the Styrofoam, plastic wrapped grocery
tray it came in. Any more than that, re-wrap it to prevent freezer burn.)
Beef and lamb chops, steaks and roasts safely keep for about a year (unless
it's ground, as in hamburger, in which case plan to use it in about 4 months).
Pork will last about six to eight months and sausage can go for about three
months.
Poultry
It's a good idea to remove poultry innards before freezing (although they
can be frozen together). Never stuff and freeze raw poultry, as you risk
salmonella contamination. Whole chicken and turkeys will keep for about a
year. Chicken and turkey parts, ground poultry, as well as whole duck and
goose will last about six months.
Fish
Scale and clean fish before freezing (this is probably done for you if you
got your fish at a grocery store). As with meat, the higher the fat content
in your fish, the shorter the time it will keep well in the freezer. Oily
fish will keep for about three months and leaner fish will keep about six.
Dairy Products
The higher the fat content in dairy products, the better they freeze. Milk
products that are under 40% butterfat will separate, but heavy cream does
well. You can freeze butter with no texture changes, but remember, fat can
go rancid even in a freezer, so never keep it for more than two months.
Cheese
Freezing does change the consistency of most cheeses, making it more mealy
and crumbly, although the flavor remains intact. If you plan to grate or
melt your cheese, this textural change won't matter much. If you plan to
slice your cheese, it's best not to freeze it. Softer cheeses such as cream
or cottage cheese do not freeze well at all (although most cheesecakes will
do fine in the freezer). Blue cheese, Roquefort and gorgonzola are usually
served crumbled so they freeze well and should keep for about six months
(a little of these strong cheeses goes a long way, so they're handy to have
in the freezer for quick "flavor pick ups" to recipes). Well wrapped firm
cheeses (like cheddar, gouda, Swiss etc.) should keep for about six months
in your freezer. Hard cheeses like parmesan and romano will keep for about
a year.
If you have a large block of cheese, cut it into manageable chunks, before
freezing in order to cut down on thawing time.
I like to freeze bags of shredded mozzarella so that I can remove the amount
I like at a moment's notice. Shredded cheddar or other firm cheeses are also
handy, and they are a lot cheaper to buy in bulk. Otherwise, fresh is always
better.
Sauces
Tomato sauces and the like do very well in the freezer. Mayonnaise and mayonnaise
based sauces, however, will separate. Sauces (or even custards) thickened
with flour or cornstarch don't freeze well, but those thickened with arrowroot
or tapioca do.
Herbs
Don't throw away leftover fresh herbs. Wrap them in Ziplock® bags and
freeze them. Be sure to blanch leafier herbs like basil. Sturdier herbs like
rosemary freeze exceedingly well.
What Not To Freeze
Some foods just don't do well in the freezer. Vegetables with high moisture
contents like lettuces, celery and cucumbers will thaw limper than a rag
doll. Some dairy products like cream cheese or cottage cheese, cream,
mayonnaise, custards, cream fillings or meringues will not freeze well because
they will separate or curdle. Ditto for food made with gelatin. Fried foods
will likely turn soggy or rancid when frozen.
Thawing Food
The safest method of thawing food is slowly, in your refrigerator. For this
method allow about 8 hours per pound of meat and about 4 hours per pound
of poultry, and about 6 hours per pound of fruit or vegetables.
You can speed up the process by about 1/8 the time by submerging the food
(still wrapped) in a sink full of COLD water. You can also use the defrost
feature on your microwave oven.
Never allow meat or eggs to defrost on the counter top. This is an invitation
for bacteria to grow and can result in food poisoning. Baked goods and most
fruits, on the other hand, can thaw at room temperature. With the exception
of baked goods, most food should not be re-frozen (and even baked good may
become drier with repeated freezings).
About the Author
Cheri Sicard is the editor of
FabulousFoods.com, a content rich online cooking community. She lives in
Los Angeles.
http://www.fabulousfoods.com
Did you enjoy this article?
Rate
It! | Tell A Friend
|