INTERNATIONAL
FOOD SAFETY CONSULTANCY
DR WILLEM MARSMAN
The kitchen sink drain, disposal and connecting pipe are often overlooked, but they should be sanitized periodically by pouring down the sink a solution of 1 teaspoon (5 millilitres) of chlorine bleach in 1 quart (about 1 litre) of water or a solution of commercial kitchen cleaning agent made according to product directions. Food particles get trapped in the drain and disposal and, along with the moistness, create an ideal environment for bacterial growth.
What comes to mind when you think of a clean kitchen? Shiny waxed floors? Gleaming stainless steel sinks? Spotless counters and neatly arranged cupboards?
They can help, but a truly “clean” kitchen – that is, one that ensures safe food – relies on more than just looks: It also depends on safe food practices.
In the home, food safety concerns revolve around three main functions: food storage, food handling, and cooking. To see how well you’re doing in each, take this quiz, and then read on to learn how you can make the meals and snacks from your kitchen the safest possible.
Choose the answer that best describes the practice in your household, whether or not you are the primary handler.
1. Refrigerators should stay at 41F (5C) or less, if you chose answer B, give yourself two points. If you didn’t, you’re not alone. According to Robert Buchanan, Ph.D., food safety initiative lead scientist in the Food and Drug Administration’s Centre for Food Safety and Applied Nutrition, many people overlook the importance of maintaining an appropriate refrigerator temperature.
“ According to survey, in many
households, the refrigerator temperature is above 50 degress (10C),” he
said. His advice: Measure the
temperature with a thermometer and, if needed, adjust the refrigerator’s
temperature control dial. A temperature
of 41F (5C) or less is important because it slows the growth of most bacteria. The temperature won’t kill the bacteria, but
it will keep them from multiplying, and the fewer there are, the less likely
you are to get sick from them. Freezing
at zero F (minus 18C) or less stops bacterial growth (although it won’t kill
all bacteria already present).
2. Answer B is the best practice, give yourself two points if you picked it.
Hot foods should be refrigerated as soon as possible within two hours after cooking. But don’t keep the food if it’s been standing out for more than two hours. Don’t taste test it, either. Even a small amount of contaminated food can cause illness.
Date leftovers so they can be used within a safe time. Generally, they remain safe when refrigerated for three to five days. If in doubt, throw it out, said FDA microbiologist Kelly Bunning, Ph.D., also with FDA’s food safety initiative: “It’s not worth a food-borne illness for the small amount of food usually involved.”
3. If answer A best describes your household’s practice, give yourself two points. Give yourself one point if you chose B.
According to FDA’s John Guzewich epidemiologist on FDA’s food safety initiative team, the kitchen sink drain, disposal and connecting pipe are often overlooked, but they should be sanitized periodically by pouring down the sink a solution of 1 teaspoon (5milliliters) of chlorine bleach in 1 quart (about 1 litre) of water of a solution of commercial kitchen cleaning agent made according to product directions. Food particles get trapped in the drain and disposal and, along with the moistness, create an ideal environment for bacterial growth.
4. If answer D best describes your household’s practice, give yourself two points.
If you picked A, you’re violating an important food safety rule: Never allow raw meat, poultry and fish to come in contact with other foods. Answer B isn’t good either. Improper washing, such as with a damp cloth, will not remove bacteria. And washing only with soap and water may no do the job, either.
5. Give yourself two points if you picked answer C.
If you don’t have a meat thermometer, there are other ways to determine whether seafood is done:
For fish, slip the point of a sharp knife into
the flesh and pull aside. The edges
should be opaque and the center slightly translucent with flakes beginning to
separate. Let the fish stand three to
four minutes to finish cooking.
For shrimp, lobster and scallops, check color. Shrimp and lobster and scallops, red and the
flesh becomes pearly opaque. Scallops
turn milky white or opaque and firm.
For clams, mussels and oysters, watch for the
point at which their shells open.
Boil three to five minutes longer. Throw out those that stay closed.
When using the microwave, rotate the dish
several times to ensure even cooking.
Follow recommend standing times.
After the standing time is completed, check the seafood in several spots
with a meat thermometer to be sure the product has reached the proper
temperature.
6.
If you
answered A, you may be putting yourself at risk for infection with Salmonella
enteritidis, a bacterium that can be in shell eggs. Cooking the egg or egg-containing food product to an internal
temperature of at least 145F (63C)
kills the bacteria. So answer C –
eating the baked product – will earn you two ponts.
You’ll get two points for answer B, also. Foods containing raw eggs, such as homemade
ice cream, cake batter, mayonnaise, and eggnog, carry a Salmonella risk, but
their commercial counterparts don’t.
Commercial products are made with pasteurized eggs; that is, eggs that
have been heated sufficiently to kill bacteria, and also may contain an acidifying
agent that kills the bacteria.
Commercial preparations of cookie dough are not a food hazard.
If you want to sample homemade dough or batter
or eat other foods with raw-egg-containing products, consider substituting
pasteurized eggs for raw eggs. Pasteurized
eggs are usually sold in the grocer’s refrigerated dairy case.
Some other tips to ensure egg safety:
Buy only refrigerated eggs, and keep them
refrigerated until you are ready to cook and serve them.
Cook eggs thoroughly until both the yolk and
white are firm, not runny, and scramble until there is no visible liquid egg.
Cook pasta dishes and stuffings that contain
eggs thoroughly.
7.
Answers
C or D will earn you two points each; answer B, one point. According to FDA’s Guzewish, bleach and
commercial kitchen cleaning agents are the best sanitizers – provided they’re
diluted according to product directions.
They’re the most effective at getting rid of bacteria. Hot water and soap does a good job, too, but
may not kill all strains of bacteria.
Water may get rid of visible dirt, but not bacteria.
Also, be sure to keep dishcloths and sponges
clean because, when wet, these materials harbor bacteria and may promote their
growth.
8.
Answers
A and C are worth two points each.
There are potential problems with B and D. When you let dishes sit in water for a long time, it “creates a
soup”, FDA’s Buchanan said. “The food
left on the dish contributes nutrients for bacteria, so the bacteria will
multiply”. When washing dishes by hand, he said, it’s best to wash them all
within two hours. Also, it’s best to
air-dry them so you don’t handle then while they’re wet.
9.
The only correct practice is answer C. Give yourself two points if you picked it.
Wash hands with warm water and soap for at
least 20 seconds before and after handling food, especially raw meat, poultry
and fish. If you have an infection or
cut on your hands, wear rubber or plastic gloves. Wash gloved hands just as
often as bare hands because the gloves can pick up bacteria. (however, when washing gloved hands, you
don’t need to take off your gloves and wash your bare hands, too).
10.
Give
yourself two points if you picked B or C.
Food safety experts recommend thawing foods in the refrigerator or the microwave
oven or putting the package in water-tight plastic bag submerged in cold water
and changing the water every 30 minutes.
Gradual defrosting overnight is best because it helps maintain quality.
When microwaving, follow package
directions. Leave about 2 inches (about
5 centimetres) between the food and the inside surface of the microwave to
allow heat to circulate. Smaller items
will defrost more evenly than large pieces of food. Foods defrosted in the microwave oven should be cooked
immediately before thawing.
Do not thaw meat, poultry and fish products on
the counter on in the sink without cold water;
bacteria multiply rapidly at room temperature.
Marinate food in the refrigerator, not on the
counter. Discard the marinade after use
because it contains raw juices, which may harbor bacteria. If you want to use the marinade as a dip or
sauce, reserve a portion before adding any raw food.
11.
A and
B are correct. Give yourself two points
for either.
When buying fresh seafood, buy only from reputable
dealers who keep their products refrigerated or properly iced. Be wary, for example, of vendors selling
fish out of their creel (canvas bag) or out of the back of their truck.
Once you buy the seafood, immediately put it on
ice, in the refrigerator or in the freezer.
Some other tips for choosing safe seafood:
Don’t buy cooked seafood, such as shrimp,
crabs or smoked fish, if displayed in the same case as raw fish. Cross-contamination can occur. Or, at least, make sure the raw fish is on a
level lower than the cooked fish so that the raw fish juices don’t flow onto
the cooked items and contaminate them.
Don’t buy frozen seafood if the packages are
open, torn or crushed on the edges.
Avoid packages that are above the frost line in the store’s freezers. If the package cover is transparent, look
for signs of frost or ice crystals.
This could mean that the fish has either been stored for long time or
thawed and refrozen.
Recreational fishers who plan to eat their
catch should follow state and local government advisories about fishing areas
and eating fish from certain areas.
As with meat and poultry, if seafood will be
used within two days after purchase, store it in the coldest part of the
refrigerator, usually under the freezer compartment or in a special ‘meat
keeper’. Avoid packing it in tightly
with other items; allow air to circulate freely around the package. Otherwise, wrap the food tightly in moisture
proof freezer paper or foil to protect it from air leaks and store in the
freezer.
Discard shellfish, such as lobsters, crabs,
oysters, clams and mussels, if they die during storage or if their shells crack
or break. Live shellfish close up when
the shell is tapped.
12.
If you
are under treatment for any of these diseases, as well as several others, you
should avoid raw seafood. Give yourself
two points for knowing one or more of the risky conditions.
People with certain diseases and conditions
need to be especially careful because their diseases or the medicine they take
may put them at risk for serious illness or death from contaminated seafood.
These conditions include:
liver disease, either from excessive alcohol
use, viral hepatitis or other causes,
hemochromatosis, an iron disorder,
diabetes
stomach problems, including previous stomach
surgery and low stomach acid, (for example, from antacid use)
immune disorder, include HIV infection
long term steroid use, as for asthma and
arthritis
Older adults also may be at increased risk
because they more often have these conditions.
People with these disease or conditions should
never eat raw seafood – only seafood that has been thoroughly cooked.
24
points: Feel confident about the safety of foods
served in your home.
12 to 23
points: Re-examine food safety practices in your
home. Some key rules are being
violated.
11
points or below: Take steps immediately to correct food
handling, storage and cooking techniques used in your home. Current practices are putting you and other
members of your household in danger of food borne illness
Foods containing raw eggs, such as homemade
ice cream, cake batter, mayonnaise, and eggnog, carry a Salmonella risk, but their
commercial counterparts don’t.
Commercial products are made with pasteurised eggs; that is, eggs that
have been heated sufficiently to kill bacteria, and also may contain an
acidifying agent that kills the bacteria.
Commercial preparations of cookie dough are not a food hazard.
If you want
to sample homemade dough or batter or eat other foods with raw-egg -containing
products, consider substituting pasteurised eggs for raw eggs. Pasteurised eggs are usually sold in the
grocer’s refrigerated dairy case.
Bleach and commercial kitchen cleaning agents
are the best sanitizers -provided they’re diluted according to product
directions. They’re the most effective
at getting rid of bacteria. Hot water
and soap does a good job, too, but may not kill all strains of bacteria. Water may get rid of visible dirt, but not
bacteria.
Also, be
sure to keep dishcloths and sponges clean because, when wet, these materials
harbour bacteria and may promote their growth.
Food safety
experts recommend thawing foods in the refrigerator or the microwave oven or
putting the package in a water-tight plastic bag submerged in cold water and
changing the water every 30 minutes.
Changing the water ensures that the food is kept cold, an important
factor for slowing bacterial growth that may occur on the outer thawed portions
while the inner areas are still thawing.
When
microwaving, follow package directions. Leave about 2 inches (about 5 centimetres) between the food and
the inside surface of the microwave to allow heat to circulate. Smaller items will defrost more evenly than
larger pieces of food. Foods defrosted
in the microwave oven should be cooked immediately after thawing.
Do not thaw
meat, poultry and fish products on the counter on in the sink without cold
water; bacteria can multiply rapidly at room temperature.
Opening the
front door on a cold winter evening and being greeted by the inviting smells of
beef stew or chicken noodle soup wafting from a slow cooker can be a diner’s
dream come true. But winter is not the
only time a slow cooker is useful. In
the summer, using this small appliance can avoid introducing heat from a hot
oven. At any time of year, a slow cooker can make life a little more convenient
because by planning ahead, you save time later. And it takes less electricity to use a slow cooker rather than an
oven.
Yes, the
slow cooker, a countertop appliance, cooks foods slowly at a low temperature -
generally between 170° and 280°F. The
low heat helps less expensive, leaner cuts of meat become tender and shrink
less.
The direct
heat from the pot, lengthy cooking and steam created within the tightly-covered
container combine to destroy bacteria and make the slow cooker a safe process
for cooking foods.
Begin with
a clean cooker, clean utensils and a clean work area. Wash hands before and during food preparation.
Keep
perishable foods refrigerated until preparation time. If you cut up meat and vegetables in advance, store them
separately in the refrigerator. The
slow cooker may take several hours to reach a safe, bacteria-killing
temperature. Constant refrigeration
assures that bacteria, which multiply rapidly at room temperature, won’t get a
“head start” during the first few hours of cooking.
Always
defrost meat or poultry before putting it into a slow cooker. Choose to make foods with a high moister
content such as chilli, soup, stew or spaghetti sauce.
Cut foods
into chunks or small pieces to ensure thorough cooking. Do not use the slow cooker for large pieces
like a roast or whole chicken because the food will cook so slowly it could
remain in the bacterial “danger zone” too long.
Fill cooker
no less than half full and no more than two-thirds full. Vegetables cook slower than meat and poultry
in a slow cooker so if using them, put vegetables in first, at the bottom and
around sides of the utensil. Then add
meat and cover the food with liquid such as broth, water or barbecue sauce. Keep the lid in place, removing only to stir
the food or check for doneness.
Most
cookers have two or more settings.
Foods take different times to cook depending upon the setting used. Certainly, foods will cook faster on high
than on low. However, for all-day
cooking or for less-tender cuts, you may want to use the low setting.
If
possible, turn the cooker on the highest setting for the first hour of cooking
time and them to low or the setting called for in your recipe. However, it’s safe to cook foods on low the
entire time - if you’re leaving for work, for example, and preparation time is
limited.
While food
is cooking and once it’s done, food will stay safe as long as the cooker is
operating.
If you are
not at home during the entire slow-cooking process and the power goes out,
throw away the food even if its looks done.
If you are
at home, finish cooking the ingredients immediately by some other means: on a
gas stove, on the outdoor grill or at a house where the power is on.
When you
are at home, and if the food was completely cooked before the power went out,
the food should remain safe up to two hours in the cooker with the power off.
Store
leftovers in shallow covered containers and refrigerate within two hours after
cooing is finished. Reheating leftovers
in a slow cooker is not recommended.
However, cooked food can be brought to steaming on the stove top or in a
microwave oven and then put into a preheated slow cooker to keep hot for
serving.
Whether it’s
off to school or work we go, millions carry “bag” lunches. Food brought from home can be kept safe if
it is handled and cooked safely. Then,
perishable food must be kept cold while commuting via bus, bicycle, on foot, in
a car, or on the subway. After arriving
at school or work, perishable food must be kept cold until lunchtime.
Why keep
food cold? Harmful bacteria multiply
rapidly in the “danger zone” - the temperature between 40° and 140°F. So, perishable food transported without an
ice source won’t stay safe long. Here
are safe handling recommendations to prevent foodborne illness from “bag”
lunches.
Perishable
food, such as raw or cooked meat and poultry, must be kept cold or frozen at
the store and at home. Eggs should be
purchased cold at the store and kept cold at home. In between, transport perishable food as fast as possible when no
ice source is available. At the
destination, it must be kept cold. Food
should not be left out at room temperature more than 2 hours (1 hours if the
temperature is above 90°F)
Prepackaged
combos that contain luncheon meats along with crackers, cheese and condiments
must also be kept refrigerated. This
includes meats and smoked ham which are cured or contain preservatives.
Wash your
hands before you prepare or eat food.
Wash cutting boards, dishes, utensils, and countertops with hot, soapy
water after preparing each food item and before you go on to the next item. A solution of 1 teaspoon of bleach in 1 quart
of water maybe used to sanitize surfaces and utensils. Keep family pets away from kitchen counters.
Harmful
bacteria can spread throughout the kitchen and get onto cutting boards,
utensils, and countertops. Always use a
clean cutting board. When using a
cutting board for food that will not be cooked, such as bread, lettuce and
tomatoes, be sure to wash the board after using it to cut raw meat and poultry. Use on cutting board for fresh produce and a
separate one for meat and poultry.
At
lunchtime, discard all used food packaging and paper bags. Do not reuse packaging because it could
contain other food and cause foodborne illness.
Pack just
the amount of perishable food that can be eaten at lunch. That way, there won’t be a problem about the
storage or safety of leftovers.
It’s fine
to prepare the food the night before and store the packed lunch in the
refrigerator. Freezing sandwiches helps
them stay cold. However, for best
quality, don’t freeze sandwiches containing mayonnaise, lettuce or
tomatoes. Add these later.
Insulated,
soft-sided lunch boxed or bags are best for keeping food cold, but metal or
plastic lunch boxed and paper bags can also be used. If using paper lunch bags, create layers by double bagging to
help insulate the food. An ice source
should be packed with perishable food in any type of lunch bag or box.
Prepare
cooked food, such as turkey, ham, chicken and vegetable or pasta salads, ahead
of time to allow for thorough chilling in the refrigerator. Divide large amounts of food into shallow
containers for fast chilling and easier use.
Keep cooked food refrigerated until time to leave home.
To keep
lunches cold away from home, include a small frozen gel pack or frozen juice
box. Of course, if there’s a
refrigerator available, store perishable items there upon arrival.
Some food
is safe without a cold source. Items
that don’t require refrigeration include fruits, vegetables, hard cheese,
canned meat and fish, chips, breads, crackers, peanut jelly, mustard and
pickles.
Use an
insulated container to keep food like soup, chilli and stew hot. Fill the container with boiling water, let
stand for a few minutes, empty, and then put in the piping hot food. Keep the insulated container closed until
lunchtime to keep the food hot - 140°F
or above.
When using
the microwave oven to reheat lunches, cover food to hold in moisture and
promote safe, even heating. Reheat
leftovers to at least 165°F (73.89°C).
Food should be steaming hot.
Cook frozen convenience meals according to package instructions.
Listeria
monocytogenes is
found in soil and water. Vegetables can become contaminated from the soil or
from manure used as fertilizer. Animals
can carry the bacteria without appearing ill and can contaminate foods of
animal origin such as meats and dairy products. The bacteria can be found in a variety of raw foods, such as
uncooked meats and vegetables, as well as in processed foods that become
contaminated after processing, such as soft cheeses and cold cuts at the deli
counter. Unpasteurized (raw) milk or
foods made from unpasteurized milk may contain the bacteria.
Symptoms
vary and depend on the individual susceptibility, but may include fever,
fatigue, nausea, vomiting and diarrhea.
Listeria
monocytogenes is a
bacterium that can cause a serious infection in humans called listeriosis that
results in an estimated 2,500 serious illnesses and 500 deaths each year in the
US. Foodborne illness caused by L.
monocytogenes in pregnant women can result in miscarriage, fetal death, and
severe illness or death of a newborn infant.
Others at risk for severe illness or death are older adults and those
with weakened immune systems.
Because L.
monocytogenes can grow at refrigerator temperatures and is found in
ready-to-eat foods, the food authorities is advising all consumers to reduce
the risk of illness by:
Using perishable items that are precooked or
ready-to-eat as soon as possible;
Cleaning their refrigerator regularly; and
Using a refrigerator thermometer to make sure
that the refrigerator always stays at 40°F (4.4°C) or below.
Since pregnant
women, older adults, and people with weakened immune systems are at a higher
risk for listeriosis, FDA is providing the following advice to those at-risk
consumers of foods that have a greater likelihood of containing Listeria
monocytogenes:
Do not eat hot dogs and luncheon meats,
unless they are reheated until steaming hot.
Do not eat soft cheese such as Feta,
Brie, and Camembert Cheeses, blue-veined cheeses, and Mexican-style cheeses
such as “queso blanco fresco”.
Cheeses
that may be eaten include hard cheese; semi-soft cheeses such as mozzarella;
pasteurized processed cheeses such as slices and spreads; cream cheese; and
cottage cheese.
Do not eat refrigerated pates or meat
spreads. Canned or shelf-stable pates
and meat spreads may be eaten.
Do not eat refrigerated smoked seafood,
unless it is contained in a cooked dish, such as a casserole. Refrigerated smoked seafood, such as salmon,
trout, whitefish, cod, tuna or mackerel, is most often labeled as “nova-style”,
“lox”, “kippered”, “smoked” or “jerky”.
The fish is found in the refrigerator section or sold at deli counters
of grocery stores and delicatessens.
Canned or shelf-stable smoked seafood may be eaten.
Do not drink raw (unpasteurized) milk
or eat foods that contain unpasteurized milk.
To keep
food safe from harmful bacteria, follow these four simple steps:
Clean:
Wash hands and surfaces often
Separate:
Don’t cross-contaminate
Cook:
Cook to proper temperatures
Chill:
Refrigerate promptly
Cutting
boards can harbor bacteria in cracks and grooves caused by knives. But with little effort, plastic, a hard
wood, such as maple, or any nonporous surface can be used safely if used
properly. Here’s how:
REMEMBER: Always clean and sanitize your board after
using it for raw meat, poultry and seafood and before using it for ready-to-eat
foods.
To avoid
the possibility of Foodborne illness, fresh eggs must be handled carefully.
Evens eggs with clean, uncracked shells may occasionally contain bacteria
called Salmonella that can cause an intestinal infection. The most effective way to prevent
egg-related illness is by knowing how to buy, store, and handle and cook eggs –
or foods that contain them – safely.
That is why the U.S. Food and Drug Administration (FDA) requires all
cartons of shell eggs that have not been treated to destroy Salmonella must
carry the following safe handling
statement:
Safe
Handling Instructions: To prevent
illness from bacteria: keeps eggs refrigerated, cook eggs until yolks are firm,
and cook foods containing eggs thoroughly.
Following
these instructions is important for everyone but especially for those most
vulnerable to Foodborne disease – children, the elderly, and person with
weakened immune systems due to steroid use, conditions such as AIDS, cancer or
diabetes, or such treatments as chemotherapy for cancer or immune suppression
because of organ transplants.
Eggs that
have been treated to destroy Salmonella – by in-shell pasteurization, for
example – are not required to carry safe handling instructions.
Buy eggs only if sold from a refrigerated
case.
Open the carton and make sure that the eggs
are clean and the shells are not cracked.
Refrigerate promptly.
Store eggs in their original carton and use
them within 3 weeks for best quality.
Before
preparing any food, remember that cleanliness is the key!
Wash hands, utensils, equipment, and work
surfaces with hot, soapy water before and after they come in contact with
eggs and egg-containing foods.
Thorough
cooking is perhaps the most important step in making sure eggs are safe.
Cook eggs until both the yolk and the white
are firm. Scrambled eggs should not be
runny.
Casseroles and other dishes containing eggs
should be cooked to 160°F (72°C).
Use a food thermometer to be use.
For recipes that call for eggs that are raw or
undercooked when the dish is served – Caesar Salad dressing and homemade ice
cream are two examples – use either shells eggs that have been treated to
destroy Salmonella, by pasteurization or another approved method, or
pasteurized egg products. Treated shell
eggs are available from a growing number of retailers and are clearly labeled,
while pasteurized egg products are widely available.
Bacteria
can multiply in temperatures form 40°F
(5°) to 140°F (60°C), so it’s very important to serve
foods safely.
Serve cooked eggs and egg containing foods
immediately after cooking.
For buffet style serving, hot eggs should be
kept hot, and cold dishes kept cold.
Eggs and egg dishes, such as quiches or
soufflés, may be refrigerated for serving later but should be thoroughly
reheated to 165°F (74°C) before serving.
Cooked eggs, including hard boiled eggs, and
egg containing foods should not sit out for more than 2 hours. Within 2 hours either reheat or refrigerate.
Use hard-cooked eggs (in the shell or peeled)
within 1 week after cooking.
Use frozen eggs within one year. Eggs should not be frozen in their
shells. To freeze whole eggs, beat
yolks and whites together. Egg whites
can also be frozen by themselves.
Refrigerate leftover cooked egg dishes and use
within 3-4days. When refrigerating a
large amount of a hot egg-containing leftover, divide it into several shallow
containers so it will cool quickly.
Cooked eggs for a picnic should be packed in
an insulated cooler with enough ice or frozen gel packs to keep them cold.
Don’t put the cooler in the trunk – carry it
in the air-conditioned passenger compartment of the car.
If taking cooked eggs to work or school, pack
them with a small frozen gel pack or a frozen juice box.
Generally,
seafood is very safe to eat, but raw or undercooked seafood can be unsafe.
Seafood
grown or collected from contaminated water can get colonized by viruses in the
water. Shellfish foods, such as
oysters, pump a lot of water through their bodies each day and filter our
micro-organisms. Thus, they are very
likely to collect viruses from the water.
Some oysters, for example, are eaten raw or lightly cooked, which
increases the risk of Foodborne illness.
And viruses are not the only culprits.
Bacteria and parasites are threats to raw seafood, as well. To keep seafood safe:
Buy only fresh seafood that is refrigerated or
properly iced.
Always cook fish thoroughly. Cooking fish until it’s opaque and flaky helps
destroy any existing pathogenic bacteria that may be present.
All consumers should avoid eating raw oysters
or shellfish. People with liver disorders or weakened immune systems are
especially at risk for getting sick.