Does Blue + Red = G...
 

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[Closed] Does Blue + Red = Green?

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A colleague was telling me how when he went to the shops during snowmaggedon they only had Skimmed or Full Fat milk.  As he only drinks semi-skimmed he purchased one of each and mixed them together.

I didn't know if I should mock him or admire him.

So, does red lid + blue lid = green lid?


 
Posted : 08/03/2018 10:24 am
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Pretty much - fat per pint for full/semi/skimmed is something like 22g/9.9g/0.5g. So mixing a pint of full with a pint of skimmed gives a fat content just above semi-skimmed.


 
Posted : 08/03/2018 10:28 am
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Yes, of course they do. One is 4% fat, one is less than 1%. Nothing more has been done than remove the fat from the skimmed milk, so by mixing two pints of skimmed and full fat you get close, but not exactly, semi-skimmed.


 
Posted : 08/03/2018 10:28 am
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Well that messed with my IT & Art colour knowledge.


 
Posted : 08/03/2018 10:30 am
 DezB
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Gosh, people know the percentages and everyfing!

The local Tesco Express ran out a few days after the snow had gone, which was weird. I bought a skimmed and dumped it in with the remains of the semi I had in the fridge. Tasted ok. Didn't notice the difference in tea, so might do that more often.


 
Posted : 08/03/2018 10:31 am
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Full fat is 4%, semi skimmed is 2% and skimmed is nearly 0%.  So yes it'd work.


 
Posted : 08/03/2018 10:31 am
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Gosh, people know the percentages and everyfing!

I got a degree in food science a long time ago and worked in a creamery for a while, analysing milk. Although looking at supermarket packaging it seems that my % info may be different from what they are quoting..


 
Posted : 08/03/2018 10:35 am
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Good work. I'll not laugh at him then.


 
Posted : 08/03/2018 10:35 am
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Its probably what they do in the dairy anyway, building a separator that produced semi-skimmed would be a challenge, so I'd bet they just produce skimmed milk and blend it back with the full fat milk.


 
Posted : 08/03/2018 10:36 am
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I got a degree in food science a long time ago and worked in a creamery for a while, analysing milk. Although looking at supermarket packaging it seems that my % info may be different from what they are quoting..

Looks like you are an expert then, the very best, the cream of the crop.


 
Posted : 08/03/2018 10:37 am
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Online calculator

http://www.widman.biz/English/Calculators/Mixtures.html


 
Posted : 08/03/2018 10:38 am
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dumped it in with the remains of the semi I had in the fridge.

Now there's an image.


 
Posted : 08/03/2018 10:39 am
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<coughs> I may have edited mine so it says grams instead of percentages...which may have been a bit misleading originally...


 
Posted : 08/03/2018 10:40 am
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coughs> I may have edited mine so it says grams instead of percentages…which may have been a bit misleading originally…

I had to go and check whether my figures were right because of your initial post. 22% fat - what are they feeding these cows on? 😂


 
Posted : 08/03/2018 11:10 am
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Are there blue, red and green cows?


 
Posted : 08/03/2018 11:26 am
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I'm shocked. I was under the impression that there were different breeds of cows for the different kinds of milk. Every day is a school day on here!


 
Posted : 08/03/2018 11:29 am
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Gosh, people know the percentages and everyfing!

In the USA semi-skimmed is called 2% milk.  From that I inferred other numbers 🙂


 
Posted : 08/03/2018 11:33 am
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I'd heard skimmed milk isn't quite the same, often has has added titanium oxide to make it white, else it would look wierd and people wouldnt buy it.


 
Posted : 08/03/2018 11:33 am
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Are there blue, red and green cows?

No, but there is blue, red and green grass.


 
Posted : 08/03/2018 1:29 pm
 IHN
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Its probably what they do in the dairy anyway, building a separator that produced semi-skimmed would be a challenge, so I’d bet they just produce skimmed milk and blend it back with the full fat milk.

Nope, at least not when i worked in a dairy farm twenty years ago.

The milk from the cows all went in the tank and left to settle so the cream rose to the top. The semi-skimmed milk was then drained from the bottom, pasteurised and bottled. When enough semi-skimmed had been bottled, the paddles in the tank were switched on, mixing the cream back in, and that mixture was bottled as full-fat.

Skimmed milk needs more processing to get all the fat out (they might put it n a centrifuge, I'm not sure). We bought skimmed in as we didn't have the facilities to make it.


 
Posted : 08/03/2018 1:43 pm
 Pyro
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Are there blue, red and green cows?

And why is the Milka cow lilac?!


 
Posted : 08/03/2018 1:46 pm
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Nope, at least not when i worked in a dairy farm twenty years ago.

The milk from the cows all went in the tank and left to settle so the cream rose to the top. The semi-skimmed milk was then drained from the bottom, pasteurised and bottled. When enough semi-skimmed had been bottled, the paddles in the tank were switched on, mixing the cream back in, and that mixture was bottled as full-fat.

That's not how it's done in a proper creamery. You wouldn't be able to produce a consistent percentage fat milk your way.


 
Posted : 08/03/2018 1:51 pm
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In the USA semi-skimmed is called 2% milk.

Strangely I always thought US half-and-half was semi-skimmed but seems it's half cream half milk, I swear I see them with gallon cartons of the stuff in some films though?


 
Posted : 08/03/2018 3:14 pm

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