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Sarah McLean

Sarah McLean. Raw Milk: Does It Do A Body Good?. What is raw milk?. Milk that has not been pasteurised or equivalently heat treated Pasteurisation is the process of heating milk to 72 o C for 15 seconds in order to kill bacteria

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Sarah McLean

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  1. Sarah McLean • Raw Milk:Does It Do A Body Good?

  2. What is raw milk? • Milk that has not been pasteurised or equivalently heat treated • Pasteurisation is the process of heating milk to 72oC for 15 seconds in order to kill bacteria • Some raw milk proponents believe that pasteurisation causes detrimental effects

  3. Reported benefits of drinking raw milk • Enhanced nutritional properties • Enhances immunity • Cures lactose intolerance and allergies • Prevents asthma • Cures skin conditions • Reduces behavioural problems No credible scientific evidence to support

  4. Known health risks • Many disease outbreaks attributed to consumption of raw milk • Major culprits include Escherichia coli, Salmonella spp., Campylobacter spp. and Listeria monocyotegenes • Bacterial pathogens do not affect taste / smell / appearance of milk

  5. Raw milk in Australia • The sale of raw milk for human consumption is prohibited • Loopholes exist • Bath milk • Pet food • Cow shares schemes • FSANZ Proposal P1007 - Primary production and processing requirements for dairy (raw milk) products

  6. Risk assessment framework • Three categories of raw milk products have been defined according to risk  ? ×

  7. What’s in Victorian raw milk? • Table 1. Presence of bacterial pathogens in Victorian raw milk

  8. Survival of L. monocytogenes in raw milk Figure 2. Growth of L. monocytogenes in raw milk at low temperatures

  9. Survival of E. coli O157:H7 in raw milk Figure 1. Growth of E. coli O157:H7 in raw milk at low temperatures

  10. What now? • What bacteria can be found in our raw milk and does this vary according to season? • What happens if pathogens are found that have a low infectious dose? • Is there a difference between bulk tank and farmstead raw milk? • What happens after purchase?

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