Canadians traditionally enjoy gathering with family and friends for parties, pot lucks, and family gatherings over the holidays and these gatherings regularly generate leftovers. Health Canada would like to remind all Canadians of some basic steps they can take to ensure that leftovers are eaten safely to help reduce the risk of foodborne illness during the holiday season.
Leftovers can be very safe to eat and enjoyed as long as certain food-handling practices are followed:
Handling leftovers
- Before and after handling leftovers, wash your hands with hot soapy water, as well as all utensils, dishes and work surfaces.
- For added protection, you may want to sanitize utensils, dishes and work surfaces. Normal household sanitizers or a mild bleach solution (5 ml/1 tsp. bleach per 750 ml/3 cups water) may be used.
- Keep foods out of the danger zone, between 4°C (40°F) and 60°C (140°F) to prevent the growth of harmful bacteria.
- Throw away any cooked food left out for more than two hours.
- Never rely on your nose, eyes or taste buds to judge the safety of food. You cannot tell if food is contaminated by its look, smell or taste.
- When in doubt, throw it out!
Cooling leftovers
- Refrigerate all leftovers promptly in uncovered, shallow containers so they cool quickly.
- Very hot items can first be cooled at room temperature. Refrigerate once steaming stops.
- Leave the lid off or wrap loosely until the food is cooled to refrigeration temperature.
- Avoid overstocking the refrigerator to allow cool air to circulate freely.
Storing leftovers
- Always use a clean container to hold leftovers, or wrap leftovers in leak-proof plastic bags to prevent cross-contamination. Keep different types of leftovers separate.
- Eat refrigerated leftovers within 2 to 3 days, or freeze them for later use.
- Date leftovers to help identify the contents and to ensure they are not stored too long.
Defrosting leftovers
- Thaw frozen leftovers in the refrigerator or in the microwave. Ensure food is properly sealed.
- Consume or cook the leftovers immediately after they have thawed.
Reheating leftovers
- Reheat leftovers to a safe internal temperature of 74ºC (165ºF).
- Use a digital food thermometer to check the temperature.
- Bring gravies, soups and sauces to a full, rolling boil and stir during the process.
- Discard uneaten leftovers after they have been reheated.
Reheating in a microwave
- Use only containers and plastic wrap designed for use in the microwave.
- Loosen the lid or wrap to allow steam to escape.
- Stop the microwave midway through reheating and stir the food so that the heat is evenly distributed.
- Rotate the plate several times during cooking if your microwave does not have a rotating tray.
To ensure a happy and healthy holiday season and safe food handling all year, remember these four simple rules: cook foods to proper temperatures; chill foods properly in the refrigerator; when storing leftovers, keep raw foods separate from cooked foods to avoid cross-contamination; and keep your hands, utensils and work space clean and disinfected.
It’s estimated that there are approximately 11 million cases of food-related illnesses in Canada every year. Many of these illnesses could be prevented by following proper food handling and preparation techniques.
Health Canada warns of the dangers of topical benzocaine products
Health Canada is reminding Canadians, including parents and caregivers, about health risks associated with the use of topical benzocaine products, including a rare but potentially serious blood condition known as methemoglobinemia (MetHb). Health Canada continues to receive reports of benzocaine-related adverse reactions, including MetHb. We continue to evaluate the safety of benzocaine products in light of these reports and will take appropriate regulatory actions as warranted.
Topical benzocaine products are available over-the-counter in various concentrations and formulations, including sprays, gels, liquids and creams, and are used to relieve pain from a variety of conditions such as sore throats, teething, toothache, canker sores, irritation of the mouth and gums, burns, insect bites, itching, and hemorrhoids. They are also used by healthcare practitioners during surgical, dental and other medical procedures to numb the mouth and throat.
MetHb reduces the ability of red blood cells to deliver oxygen throughout the body. Signs and symptoms of MetHb include pale, grey or blue-coloured skin, lips, or nail beds; shortness of breath; fatigue; confusion; headache; lightheadedness; nausea; and change in heart rate. These symptoms can appear within minutes or one to two hours after benzocaine use, and can occur after the first or several uses. In rare severe cases, MetHb can progress to stupor, coma and possibly death.
Other reported side effects associated with topical benzocaine products include breathing or swallowing difficulties, a swollen tongue or mouth, irregular heartbeat, malaise, body twitching, hypersensitivity, burning, redness, itching, rash, and irritation at the site of administration. These effects can occur with any topical benzocaine product, regardless of product type or benzocaine concentration, in sensitive individuals.
As with any health product, Canadians are reminded to carefully read and follow the instructions for product use. If you think you or your child may be experiencing a side effect, including signs or symptoms of methemoglobinemia, seek medical attention. If you have questions or concerns about a topical benzocaine product, speak to a healthcare practitioner.
Health Canada first communicated the risk of MetHb in a Public Advisory and Notice to Hospitals in November 2006. Since that time, Health Canada has received seven reports of serious adverse reactions involving topical benzocaine, four of which were reports of benzocaine-induced MetHb in adults.
For a list of Health Canada-licensed benzocaine products, including topical over-the-counter products, visit Health Canada’s Licensed Natural Health Products Database(search by the ingredient name “benzocaine”) and Drug Product Database (search by the active ingredient “benzocaine”).