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Food Safety While Hiking, Camping & Boating |
Outdoor activities are popular with Americans
nationwide. The fresh air and exercise revives
the spirit and the mind. Hiking, camping, and
boating are good activities for active people
and families, and in some parts of the country
you can enjoy the outdoors for 2 or 3 seasons.
In many cases, these activities last all day
and involve preparing at least one meal. If
the food is not handled correctly, foodborne
illness can be an unwelcome souvenir.
"Keep
Hot Foods Hot & Cold Foods Cold"
Whether you are in your kitchen or enjoying
the great outdoors, there are some food safety
principles that remain constant. The first is
"Keep hot foods hot and cold foods cold."
Meat and poultry products may contain bacteria
that cause foodborne illness. They must be cooked
to destroy these bacteria and held at temperatures
that are either too hot or too cold for these
bacteria to grow.
Most bacteria do not grow rapidly at temperatures
below 40 °F or above 140 °F. The temperature
range in between is known as the "Danger
Zone." Bacteria multiply rapidly at these
temperatures and can reach dangerous levels
after 2 hours.
If you are traveling with cold foods, bring
a cooler with a cold source. If you are cooking,
use a hot campfire or portable stove. It is
difficult to keep foods hot without a heat source
when traveling, so it’s best to cook foods
before leaving home, cool them, and transport
them cold.
"Keep Everything Clean"
The second principle is that bacteria present
on raw meat and poultry products can be easily
spread to other foods by juices dripping from
packages, hands, or utensils. This is called
cross-contamination. When transporting raw meat
or poultry, double wrap or place the packages
in plastic bags to prevent juices from the raw
product from dripping on other foods. Always
wash your hands before and after handling food,
and don’t use the same platter and utensils
for raw and cooked meat and poultry. Soap and
water are essential to cleanliness, so if you
are going somewhere that will not have running
water, bring it with you. Even disposable wipes
will do.
Food Safety While Hiking & Camping
Sometimes you just have to
get out and walk around in the solitude and
beauty of our country. You may
want to hike for just a few hours, or you may
want to camp for a few days. One meal and some
snacks are all that’s needed for a short
hike. Planning meals for a longer hike requires
more thought. You have to choose foods that
are light enough to carry in a backpack and
that can be transported safely.
Hot or Cold?
The first principle is to keep foods either
hot or cold. Since it is difficult to keep foods
hot without a heat source (although the new
insulated casserole dishes will keep things
hot for an hour or so), it is best to transport
chilled foods. Refrigerate or freeze the food
overnight. For a cold source, bring frozen gel-packs
or freeze some box drinks. The drinks will thaw
as you hike and keep your meal cold at the same
time. What foods to bring? For a day hike, just
about anything will do as long as you can fit
it in your backpack and keep it cold —
sandwiches, fried chicken, bread and cheese,
and even salads — or choose non-perishable
foods.
Clean
The second principle is to keep everything clean,
so remember to bring disposable wipes if you
are taking a day trip. (Water is too heavy to
bring enough for cleaning dishes!)
Safe Drinking Water
It is not a good idea to depend on
fresh water from a lake or stream for drinking,
no matter how clean it appears. Some pathogens
thrive in remote mountain lakes or streams and
there is no way to know what might have fallen
into the water upstream. Bring bottled or tap
water for drinking. Always start out with a
full water bottle, and replenish your supply
from tested public systems when possible. On
long trips you can find water in streams, lakes,
and springs, but be sure to purify any water
from the wild, no matter how clean it appears.
The surest way to make water safe is to boil
it. Boiling will kill microorganisms. First,
bring water to a rolling boil, and then continue
boiling for 1 minute. Before heating, muddy
water should be allowed to stand for a while
to allow the silt to settle to the bottom. Dip
the clear water off the top and boil. At higher
elevations, where the boiling point of water
is lower, boil for several minutes.
As an alternative to boiling water, you can
also use water purification tablets and water
filters. The purification tablets — which
contain iodine, halazone, or chlorine —
kill most waterborne bacteria, viruses, and
some (but not all) parasites. Because some parasites
— such as Cryptosporidium parvum, Giardia
lamblia, and larger bacteria — are not
killed by purification tablets, you must also
use a water filter. These water filtering devices
must be 1 micron absolute or smaller. Over time
purification tablets lose their potency, so
keep your supply fresh. Water sanitizing tablets
for washing dishes can also be purchased (just
don’t confuse the two). Water purification
tablets, filters, and sanitizing tablets can
be purchased at camping supply stores.
What Foods to Bring?
If you are backpacking for more than a day,
the food situation gets a little more complicated.
You can still bring cold foods for the first
day, but you’ll have to pack shelf-stable
items for the next day. Canned goods are safe,
but heavy, so plan your menu carefully. Advances
in food technology have produced relatively
lightweight staples that don’t need refrigeration
or careful packaging. For example:
-
peanut butter in plastic jars;
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concentrated juice boxes;
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canned tuna, ham, chicken,
and beef;
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dried noodles and soups;
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beef jerky and other dried
meats;
-
dehydrated foods;
-
dried fruits and nuts; and
-
powdered milk and fruit drinks.
Powdered mixes for biscuits or pancakes are
easy to carry and prepare, as is dried pasta.
There are plenty of powdered sauce mixes that
can be used over pasta, but check the required
ingredient list. Carry items like dried pasta,
rice, and baking mixes in plastic bags and take
only the amount you’ll need.
Cooking at Camp
After you have decided on a menu, you need to
plan how you will prepare the food. You’ll
want to take as few pots as possible (they’re
heavy!). Camping supply stores sell lightweight
cooking gear that nest together, but you can
also use aluminum foil wrap and pans for cooking.
You’ll need to decide in advance how
you will cook. Will you bring along a portable
stove, or will you build a campfire? Many camping
areas prohibit campfires, so check first or
assume you will have to take a stove. Make sure
to bring any equipment you will need. If you
are bringing a camp stove, practice putting
it together and lighting it before you pack.
If you build a campfire, carefully extinguish
the fire and dispose of the ashes before breaking
camp. Likewise, leftover food should be burned,
not dumped. Lastly, be sure to pack garbage
bags to dispose of any other trash, and carry
it out with you.
Use a Food Thermometer
Another important piece of camping equipment
is a food thermometer. If you are cooking meat
or poultry on a portable stove or over a fire,
you’ll need a way to determine when it
is done and safe to eat. Color is not a reliable
indicator of doneness, and it can be especially
tricky to tell the color of a food if you are
cooking in a wooded area in the evening.
When cooking hamburger patties on a grill or
portable stove, use a digital thermometer to
measure the temperature. Digital thermometers
register the temperature in the very tip of
the probe, so the safety of thin foods —
such as hamburger patties and boneless chicken
breasts — as well as thicker foods can
be determined. A dial thermometer determines
the temperature of a food by averaging the temperature
along the stem and, therefore, should be inserted
2 to 2 ½ inches into the food. If the
food is thin, the probe must be inserted sideways
into the food.
It is critical to use a food thermometer when
cooking hamburgers. Ground beef may be contaminated
with E. coli O157:H7, a particularly dangerous
strain of bacteria. Illnesses have occurred
even when ground beef patties were cooked until
there was no visible pink. The only way to insure
that ground beef patties are safely cooked is
to use a food thermometer, and cook the patty
until it reaches 160 °F.
Cook all meat and poultry to safe minimum internal
temperatures:
-
Beef, veal, and lamb steaks,
roasts, and chops may be cooked to 145 °F.
-
All cuts of pork to 160 °F.
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Ground beef, veal and lamb
to 160 °F.
-
All poultry should reach 165
°F.
-
Heat hot dogs and any leftover
food to 165 °F. Be sure to clean the thermometer
between uses.
Keeping Cold
If you are "car camping" (driving
to your site), you don’t have quite as
many restrictions. First, you will have the
luxury of bringing a cooler. What kind of cooler?
Foam chests are lightweight, low cost, and have
good "cold retention" power. But they
are fragile and may not last through numerous
outings. Plastic, fiberglass, or steel coolers
are more durable and can take a lot of outdoor
wear. They also have excellent "cold retention"
power, but, once filled, larger models may weigh
30 or 40 pounds.
To keep foods cold, you’ll need a cold
source. A block of ice keeps longer than ice
cubes. Before leaving home, freeze clean, empty
milk cartons filled with water to make blocks
of ice, or use frozen gel-packs. Fill the cooler
with cold or frozen foods. Pack foods in reverse
order. First foods packed should be the last
foods used. (There is one exception: pack raw
meat or poultry below ready-to-eat foods to
prevent raw meat or poultry juices from dripping
on the other foods.) Take foods in the smallest
quantity needed (e.g., a small jar of mayonnaise).
At the campsite, insulate the cooler with a
blanket, tarp, or poncho. When the camping trip
is over, discard all perishable foods if there
is no longer ice in the cooler or if the gel-pack
is no longer frozen.
Cleanup
Whether taking a hike or camping at an established
site, if you will be washing dishes or cookware,
there are some rules to follow. Camping supply
stores sell biodegradable camping soap in liquid
and solid forms. But use it sparingly, and keep
it out of rivers, lakes, streams, and springs,
as it will pollute. If you use soap to clean
your pots, wash the pots at the campsite, not
at the water’s edge. Dump dirty water
on dry ground, well away from fresh water. Some
wilderness campers use baking soda to wash their
utensils. Pack disposable wipes for hands and
quick cleanups.
Food Safety While Boating
Keeping food safe for a day on the boat may
not be quite as challenging as for a hike, but
when you are out on the water, the direct sunlight
can be an even bigger food safety problem. Remember
the "Danger Zone"? It is true that
bacteria multiply rapidly at warm temperatures,
and food can become unsafe if held in the "Danger
Zone" for over 2 hours. Above 90 °F,
food can become dangerous after only 1 hour.
In direct sunlight, temperatures can climb even
higher than that. So bring along plenty of ice,
and keep the cooler shaded or covered with a
blanket.
Keep Your Cooler Cool
A cooler for perishable food is essential. It
is important to keep it closed, out of the sun,
and covered, if possible, for further insulation.
Better yet, bring two coolers: one for drinks
and snacks, and another for more perishable
food. The drink cooler will be opened and closed
a lot, which lets hot air in and causes the
ice to melt faster. Pack your coolers with several
inches of ice, blocks of ice, or frozen gel-packs.
Store food in watertight containers to prevent
contact with melting ice water.
Keep
Cold Foods Cold
Perishable foods, like luncheon meats, cooked
chicken (Yes, that includes fried chicken!),
and potato or pasta salads, should be kept in
the cooler. Remember the rule: hot foods hot,
cold foods cold? And the 2-hour rule: no food
should be in the "Danger Zone" for
more than 2 hours? Well, unless you plan to
eat that bucket of fried chicken within 2 hours
of purchase, it needs to be kept in the cooler.
For optimum safety, consider buying it the night
before, refrigerating it in a shallow container
(not the bucket), and then packing it cold in
the cooler.
Of course, some foods don’t need to be
stored in the cooler: whole fresh fruits and
vegetables, nuts, trail mix, canned meat spreads,
and peanut butter and jelly. (However, once
canned foods are opened, put them in the cooler.)
If you don’t have an insulated cooler,
try freezing sandwiches for your outing. Use
coarse-textured breads that don’t get
soggy when thawed. Take the mayonnaise, lettuce,
and tomato with you to add at mealtime. In a
pinch, a heavy cardboard box lined with plastic
bags and packed with frozen gel packs or ice
will keep things cold until lunchtime. Freeze
water in milk cartons for your cold source.
Seafood
If you are planning to fish, check with your
fish and game agency or state health department
to see where you can fish safely, then follow
these guidelines:
Finfish:
-
Scale, gut, and clean fish
as soon as they’re caught.
-
Live fish can be kept on stringers
or in live wells, as long as they have enough
water and enough room to move and breathe.
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Wrap fish, both whole and
cleaned, in water-tight plastic and store
on ice.
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Keep 3 to 4 inches of ice
on the bottom of the cooler. Alternate layers
of fish and ice.
-
Store the cooler out of the
sun and cover with a blanket.
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Once home, eat fresh fish
within 1 to 2 days or freeze them. For top
quality, use frozen fish within 3 to 6 months.
Shellfish:
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Crabs, lobsters, and other
shellfish must be kept alive until cooked.
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Store in live wells or out
of water in a bushel or laundry basket under
wet burlap or seaweed.
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Crabs and lobsters are best
eaten the day they’re caught.
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Live oysters should be cooked
within 7 to 10 days.
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Live mussels and clams should
be cooked within 4 to 5 days.
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Eating raw shellfish is extremely
dangerous. People with liver disorders or
weakened immune systems are especially at
risk.
Cleanup
Cleanup on the boat is similar to cleanup in
the wild. Bring disposable wipes for handwashing,
and bag up all your trash to dispose of when
you return to shore.
General Rules for Outdoor Food Safety
Plan ahead: decide what you are going to eat
and how you are going to cook it; then plan
what equipment you will need.
-
Pack safely: use a cooler
if car-camping or boating, or pack foods in
the frozen state with a cold source if hiking
or backpacking.
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Keep raw foods separate from
other foods.
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Never bring meat or poultry
products without a cold source to keep them
safe.
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Bring disposable wipes or
biodegradable soap for hand- and dishwashing.
-
Plan on carrying bottled
water for drinking. Otherwise, boil water
or use water purification tablets.
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Do not leave trash in the
wild or throw it off your boat.
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If using a cooler, leftover
food is safe only if the cooler still has
ice in it. Otherwise, discard leftover food.
-
Whether in the wild or on
the high seas, protect yourself and your family
by washing your hands before and after handling
food.
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