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  • Rights: University of Waikato
    Published 8 May 2012 Referencing Hub media
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    Miel Meyer – Meyer Gouda Cheese

    Pasteurisation1 is the process of heating up milk and cooling it back down in an effort to minimise the bacterial risk of that product.

    The key to pasteurisation is to heat2 the milk to 72 degrees for no less than 15 seconds. Once you’ve done that, then your legal framework’s done and you can carry on making cheese.

    Harvesting milk from cows can be quite a dirty process. Cows in the yard are pooing and weeing all over the place. All over their environment are nasty bacteria3E. coli, Salmonella, Listeria. The pasteurisation process gets rid of and minimises the risk.

    1. pasteurisation: The process of heating a liquid to kill microorganisms, commonly used for milk and some cheeses but can also apply to honey.
    2. heat energy (heat): Heat energy: the transfer of energy in materials from the random movement of the particles in that material. The greater the random movement of particles the more heat energy the material has. Temperature is a measure of the heat energy of a material.
      Heat: the flow of energy from a warm object to a cooler object.
    3. bacteria: (Singular: bacterium) Single-celled microorganisms that have no nucleus.
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      pasteurisation

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    2. The process of heating a liquid to kill microorganisms, commonly used for milk and some cheeses but can also apply to honey.

      heat energy (heat)

    3. + Create new collection
    4. Heat energy: the transfer of energy in materials from the random movement of the particles in that material. The greater the random movement of particles the more heat energy the material has. Temperature is a measure of the heat energy of a material.
      Heat: the flow of energy from a warm object to a cooler object.

      bacteria

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    6. (Singular: bacterium) Single-celled microorganisms that have no nucleus.