Pasteurization cost

Slowcow

Member
Yes milk, well thinking about it! Or my sister is, can't think milk would cost much more? Is that just energy cost or does it include cleaning etc?
Thanks
 

upnortheast

Member
Livestock Farmer
Location
Northumberland

thesilentone

Member
Livestock Farmer
Location
Cumbria
200 litres an hour ain`t very fast if you are selling your own milk. No mention of ££
SH 900 litres hour mallinson would be better bet IMO Think ours was about £2500


To pasteurise correctly, you need to start at a very low heat, build up slowly to the required temp (at least 70 degrees). Hold that temp for one hour, then reduce the temp gradually. There are risks of releasing the VFA (volitile fatty acids) if heated to quickly, so take care.
 

devonboy

Member
Mixed Farmer
batch pasteurised milk does taste better,imo, continuous pasteurised milk tastes more like shop milk. personal opinion , everyone"s different
 

Kidds

Member
Horticulture
A tale I was told was a group of potential buyers were at a continuous (flash) pasteuriser demo.
They all decided the batch pasteurised tasted better but they all bought the continuous one.

Again, I am talking about apple juice but it sounds like the same could apply to milk. The speed of the flash pasteuriser far outweighs any loss of taste.
You might manage to appeal to some that yours tastes better but most likely your customers are not such connoisseurs that they would notice.
 

upnortheast

Member
Livestock Farmer
Location
Northumberland
Another issue is energy efficiency. Once a cont flow machine gets to working temp then its power demand drops as the hot milk leaving is warming the cold milk coming in as it passes through the heat exchanger.
Don`t have much experience of batch machines. Is there heat recovery involved as the milk is cooled ?
 

thesilentone

Member
Livestock Farmer
Location
Cumbria
Another issue is energy efficiency. Once a cont flow machine gets to working temp then its power demand drops as the hot milk leaving is warming the cold milk coming in as it passes through the heat exchanger.
Don`t have much experience of batch machines. Is there heat recovery involved as the milk is cooled ?


The key is to have two units, and heat exchange as well as double output. There is also the added benefit of homogenisation, to stop separation.

However, it is not a subject I know sufficient about, these are for ideas only.
 

thesilentone

Member
Livestock Farmer
Location
Cumbria
How does homoganisation appear in your idea ? We were talking pastuerisation
Now that is the way to bugger the taste


"
What is milk homogenization?
Homogenization is a mechanical process that is applied to milk to break down fat globules in milk so that they do not separate. Non-homogenized milk has a tendency of forming into a layer of cream on top of the milk, which many consumers detest.
We will see how the process is done down in the page when we will be talking about the continuous pasteurization process."

 

MrA.G.

Member
Livestock Farmer
Location
Northern Ireland
Slightly off topic, but I presume most pasturisers can be used for different liquids(milk, apple juice, eggs etc) and you can just alter the temp and duration settings to suit the liquid rather than certain units being specific to its contents?
Could anyone point me in the direction of somewhere to buy a good second hand unit?
 

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