Meat and Seafood: What They Contain and Why to Clean Them Before Cooking

We often think about washing fruits and vegetables to remove pesticides. But what about meat, poultry, and seafood? These foods — among the most consumed in Canada — can contain dangerous bacteria, chemical residues, and contaminants that many people are completely unaware of.

In this article, we explain what your meat and seafood really contain, why cooking alone is not always enough, what traditional methods do and do not do, and how the KSD Cleaner can transform your daily food safety approach.

What Your Meat Really Contains

Pathogenic Bacteria

• Campylobacter: the most frequently found bacteria in poultry in Canada. Responsible for most bacterial gastroenteritis cases from food. A single drop of raw chicken juice can cause an infection. Symptoms: diarrhea (sometimes bloody), abdominal pain, fever, nausea for 7 to 10 days.
• Salmonella: very prevalent in poultry, eggs, and pork. Multiplies rapidly at room temperature. Can survive several hours on kitchen surfaces.
• E. coli O157:H7: mainly associated with undercooked ground beef. Can cause serious kidney complications (Hemolytic Uremic Syndrome) in children.
• Listeria monocytogenes: present in some deli meats and processed meats. Grows even in the refrigerator. Particularly dangerous for pregnant women and the elderly.
• Staphylococcus aureus: produces heat-resistant toxins that survive cooking. Can cause food poisoning even after meat has been cooked.

Chemical Residues

• Antibiotics: widely used in intensive farming. Traces can persist in muscle tissue. Repeated exposure contributes to antibiotic resistance.
• Growth hormones: used in some countries (including the US) to accelerate livestock growth. Banned in Canada but present in imported meat.
• Accumulated pesticides: animals accumulate pesticides from their feed in their fat. Organochlorines and PCBs can be found in some fatty meats.
• Preservatives: nitrites and nitrates used in deli meats and processed meats. Associated with increased risk of certain cancers at high consumption.

What Your Seafood Really Contains

Bacteria and Viruses

• Vibrio: bacteria naturally present in saltwater. Multiplies rapidly in raw or undercooked seafood, especially oysters. Can cause serious infection (vibriosis).
• Norovirus: extremely contagious virus often found in oysters and filter-feeding bivalves. Leading cause of viral gastroenteritis worldwide.
• Hepatitis A: virus that can contaminate seafood from polluted waters. Can cause liver damage lasting several weeks.

Chemical and Environmental Contaminants

• Heavy metals: mercury accumulates in large predatory fish (tuna, swordfish, shark). Cadmium concentrates in shellfish. Lead and arsenic may be present in seafood from polluted waters.
• Microplastics: found in virtually all tested seafood. Mussels and oysters, which filter large quantities of water, concentrate them particularly.
• Bisulfites (imported shrimp): chemical preservatives widely used for shrimp imported from Southeast Asia. Can trigger reactions in sensitive individuals.
• Dioxins and PCBs: persistent organic pollutants that accumulate in the fat of fatty fish (farmed salmon, eel).

Rinsing with Water: Sufficient or Dangerous?

What Water Rinsing Does

• Removes visible residues (blood, mucus, debris).
• Slightly reduces preservation odours.
• Removes a small proportion of non-adherent bacteria.

What Water Rinsing Does Not Do

• Does not destroy bacteria — it moves and redistributes them.
• Creates splashing that spreads bacteria (Campylobacter, Salmonella) up to 1 metre around the sink — which is why Health Canada advises against rinsing raw chicken under the tap.
• Does not break down antibiotic, hormone, or heavy metal residues.
• Does not eliminate adherent bacterial biofilms.

Is Cooking Enough to Eliminate Everything?

• What cooking eliminates: virtually all pathogenic bacteria (Campylobacter, Salmonella, E. coli) provided it reaches a sufficient internal temperature (74°C/165°F for poultry, 71°C/160°F for ground beef).
• What cooking does not eliminate: heat-resistant toxins from Staphylococcus aureus, antibiotic and hormone residues, heavy metals, microplastics, and dioxins and PCBs.

How the KSD Cleaner Cleans Meat and Seafood

For Poultry (Chicken, Turkey, Duck)

• Recommended mode: 10 minutes (intensive mode).
• Hydroxyl ions eliminate up to 99.9% of Campylobacter and Salmonella on the surface.
• Reduction of surface antibiotic residues.
• Zero splashing: cleaning is done by immersion in a bowl — no bacteria spread in the kitchen.
• Elimination of residual odours from vacuum packaging.

For Beef, Pork, and Lamb

• Recommended mode: 7 to 10 minutes.
• Reduction of surface bacteria (E. coli, Listeria).
• Partial degradation of surface chemical residues.
• Elimination of odours and oxidized blood residues that accelerate deterioration.

For Shrimp and Shellfish

• Recommended mode: 5 minutes for fresh products, 10 minutes for imported or thawed products.
• Degradation of bisulfites and preservatives used in imported shrimp.
• Reduction of Vibrio bacterial load.
• Cleaning of surface heavy metals.

For Fish

• Recommended mode: 5 to 8 minutes depending on thickness.
• Reduction of surface bacteria and preservation residues.
• Elimination of strong odours from fatty acid oxidation.

For Oysters and Mussels

• Recommended mode: 5 minutes (gentle mode).
• Reduction of Norovirus and Vibrio load on shells and at valve openings.
• Shell cleaning without altering the flesh.

Complementary Best Practices

• Use separate cutting boards for raw meats and vegetables.
• Wash your hands for 20 seconds with soap after contact with raw meat.
• Disinfect the sink and work surface after preparing raw meat.
• Respect cooking temperatures: 74°C (165°F) for poultry, 71°C (160°F) for ground beef, 63°C (145°F) for whole cuts.
• Never thaw at room temperature — only in the refrigerator or under cold running water.

Conclusion

Meat and seafood deserve the same attention as fruits and vegetables when it comes to cleaning. The bacteria, chemical residues, and contaminants they carry represent real risks that neither water rinsing nor cooking alone can completely eliminate. The KSD Cleaner offers a complete solution: deep, fast, splash-free cleaning without added chemicals, applicable to all your food.

Because your family's food safety does not stop at fruits and vegetables.

Discover the KSD Cleaner — CA$69 | Promo code: WELCOME20 for 20% off your first order.