Why does organic milk last so much longer than regular milk? (2008)
scientificamerican.com
scientificamerican.com
> A lot of Americans find [UHT] offensive ... Europeans, however, don’t seem to mind.
Here in the UK, this statement is not true at all. UHT milk is certainly available in the supermarkets (not in the chilled section) but the vast majority of milk sold is fresh. I guess this is the risk of generalising a whole continent of people in such a short statement. (Probably the article's claims about Americans don't generalise to every part of that either.)
The most ridiculous thing about this statement is that it is claiming Europeans care less about UHT. Yet it's evident that at least some Americans don't care that much because they needed this article to be written to even notice that some of their milk was UHT. I'm confident that if all organic milk in UK was UHT then its consumers would be furious, without needing it to be pointed out to them.
I suspect part of British preference for fresh milk is due to the tradition of milkmen delivering fresh milk every morning, now almost entirely stopped but still in living memory. I'm reminded of a quote from the excellent British/Irish comedy Father Ted, where Father Dougal becomes a milkman: "You better get going, milk gets sour you know. Unless it's UHT milk, but there's no demand for that because it's shite".
[1] https://www.bwagrar.de/Aktuelles/Kuenftige-H-Milch-soll-mehr...
I noticed in France that UHT was very popular. Here in Germany, seems to be a mix with a preference for normal milk.
To confuse matters further, some UHT milk is sold separately, outside the fridge and in the typical carton packaging that one expects it. So it's very easy to be confused about what is UHT and what is fresh, just by looking at where a product is and how it's packaged.
Of course you'd think that the taste would give the milk away- but I find that if UHT milk is refrigerated, its "burned milk" taste is much reduced and can easily fool someone who only drinks a little milk at a time or mixed with other foods or drinks, e.g. in their coffee or cereals.
I couldn't really taste the difference.
Here in Sweden no one really buys UHT milk. I guess all stores carry it but it's rather a niche product. However, during recent years we have gotten something that's sort of in between UHT and regular milk. I don't know exactly what the process is, maybe they it's just pasteurize it for a bit longer. You need to keep it refrigerated but it will last for weeks. Some people claims it taste a bit different. To me it tastes the same as regular milk. It tastes nothing like UHT though.
Yes, definitely better than UHT.
Microfiltration (MF) of cheese milk has been proposed as an alternative to bactofugation for removal of bacterial spores. However, while good separation efficiency can be obtained, this technology has some drawbacks. First of all, for an efficient MF process, the milk would have to be skimmed prior to MF, which means that the cream phase, constituting ∼10% of milk volume, cannot be treated with MF and would require a high heat treatment to ensure inactivation of spores. Secondly, the MF retentate will typically constitute a considerably large volume than the bactofugate, again meaning that a large volume would have to be sterilized. Together, this could mean the involvement of a considerable proportion of sterilized materials being included in the cheese milk when applying MF for spore removal, with negative effects on cheese-making and cheese quality.
https://www.sciencedirect.com/topics/agricultural-and-biolog...
In short, microfiltered milk is taken apart, sterilised or filtered separately, and then put back together again- probably the most processed kind of milk you can find in the market.
Some organic milk brands nowadays are actually using very low temperature pasteurization, which heats the milk to 63°C for 30 minutes. It’s more expensive but considered to have a much better flavor.
https://www.thekitchn.com/what-is-vat-pasteurized-milk-16743...
Edit: In fact it was developed in 1996 but replaced much of pasteurized milk between 2005 and 2008 in Europe. Maybe it was a little bit later in the US? https://me-trading.de/what-is-esl-milk-a-comprehensive-guide...
Pasteurized milk will keep for 5 to 7 days, while ESL milk can keep for 12 to 21 days in the unopened container.
I think it breaks down like this:
* Vat-pasteurized (63°C/30min)
* HTST (71°C/15sec)
* ESL (123°C/5sec)
* UHT (135°C/2sec)
Sometimes I just want almond milk to be cold right now. And also, the refrigerated milk section tends to be much easier to find than whatever place the store decides to put non refrigerated milks.
Consumers because they think of it as milk, and thus it should in the same section. Producers because they want that association.
PS I'm not saying that UHT is necessarily lower quality, I'm talking exclusively about average consumer's perception.
> Though Ultra-Pasteurized milk is processed to be free of spoilage and harmful bacteria, it is not considered sterile because it is not hermetically sealed (i.e. canned), thus, it requires refrigeration. ... 30-90 days ... until opened
My ordinary American supermarket carries a ton of carton organic milk (refrigerated), and I think most of it is U-P.
[1] https://foodsafety.foodscience.cornell.edu/sites/foodsafety....
The rest, whether the milk is raw, pasteurised, UHT, or whatever, that's not to do with production anymore, but distribution and storage. So it's perfectly possible for milk to be both produced organically (so "organic") and also Ultra-Heat Treated (so UHT).
Without aseptic packaging UHT milk lasts for 90-120 days refrigerated.
That being said, it is easier to get raw milk in Europe, so I envy that.
It does say ultra-pasteurized (the carton), so I guess I've been drinking basically-UHT organic milk along with regular. The organic tastes way better to me, so maybe I don't mind the UHT flavor (or lack thereof). The milk I buy is all refrigerated fwiw, I haven't tried room temperature UHT to compare taste.
We also get organic UHT chocolate milk in small boxes which lasts a few months. UHT organic heavy cream in small boxes last some months as well.
I could go on and on about the qualities of raw milk, the richness of flavor, the high percentage of cream (~6.5% in the case of our milk), beneficial bacteria and mineral content, but the point is that it keeps well enough for us to be able to buy it once a week.
Homogenization has a slight impact on mouth feel and taste, usually described as an improvement.
And anyway the centrifuge process also allows for cream content higher than what the cow produces.
You really have to get it directly from cow to table to get the true flavor of milk.
Regardless for the rest of us it's not an option and never will be.
Again, correct me if I'm wrong.
That said, while its true that we have kept cows for thousands of years without using pasteurization, there is a reason why the average life span is high and child mortality is low. We also used to milk the cow and then directly drink it, rather than collect it and store it for a extended period of time.
* Animal feces coming into direct contact with the milk
* Infection of the udder (mastitis)
* Cow diseases (for example, bovine tuberculosis)
* Bacteria that live on the skin of animals
* Environment (for example, feces, dirt, and processing equipment)
* Insects, rodents, and other animal vectors
* Unsanitary conditions in milk processing plant
* Cross-contamination from dairy workers, such as contact with dirty clothing or boots
Source as linked in another comment: https://www.cdc.gov/foodsafety/rawmilk/raw-milk-questions-an...
From my reading raw milk can be contaminated inside and outside the cow from such a myriad of sources and while cramped industrial farming might increase the likelihood of contamination it doesn't remotely eliminate the risks. Also note pasteurization practices originated prior to industrial farming
There are certain gourmet cheeses that can only be made with raw milk; to make them with pasteurized milk is not only blasphemous, it yields objectively inferior product.
Pasteurization isn't mandated because people like the taste. It's one of many safety regulations written in blood.
Many people have died from raw milk, and would still be dying if it was widely consumed
Pasteurization is mandated because most people do not live next door to farms, so milk needs to travel and last more than a few days.
It kind of implies the opposite, that the bacteria don't need to multiply, they're already present.
Have you seen studies that show most outbreaks are from bacteria multiplying in the milk rather than contamination at the source? Since even raw milk is promptly cooled which greatly slows bacterial reproduction, I find it more likely that all the contamination needed to cause sickness happens during processing.
You can view the facilities, and make a judgement about the cleanliness -- as you might in a restaurant before considering the beef tartare -- and you have likely been buying from this farmer for some time.
Food can be contaminated at any number of places along the supply chain, but I don't see how trust enters into it. It's like trusting that you won't be served a bad oyster, impossible to rule out at even the nicest, most "trustworthy" establishment.
These kinds of risks are similar to the risks of eating beef tartare or oysters (things that I also do fairly regularly, including sometimes in developing countries!), and humans have been reasonably successfully managing these risks for a long time, meanwhile some other humans seem to massively overstate the risks for some reason.
A big benefit of raw milk is that it goes sour and is suitable for a variety of fermentation methods. This is rich in probiotics and just plain tasty. Also serves as an intermediate product for some recipes like crumpets. Here's a list of used fermentation methods by country: https://en.wikipedia.org/wiki/Fermented_milk_products
Here's the default state raw milk reaches within a few days: https://en.wikipedia.org/wiki/Soured_milk
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EU and US have opposite approaches to some foods. For example in US, chicken eggs are chemically washed completely clean to fight salmonella and other bugs. Unfortunately, it washes off the protective layer they have and eggs go bad faster. So they repaint eggs with another chemical to protect them. In EU, eggs instead receive only basic washing and you frequently find traces of crap on your eggs. US in general is high on processed foods (Oreo cookies in recipes?).
Another case is hygiene. Circumcision is common in US for 'hygienic reasons'. Alternatively, you can use soap.
My point is that you can go too far with fixing nature.
In EU farmers must administer homeopathics to sick "organic" animals instead of antibiotics.
https://fullfact.org/europe/eu-homeopathy-and-norwegian-vets...
Quote from the article:
> More detailed rules from 2008 list products that should be preferred to medicine and antibiotics "provided that their therapeutic effect is effective". These include homeopathic products, but also various vitamins and compounds of mineral origin.
Quote from the law:
> Phytotherapeutic and homeopathic products, trace elements and products listed in [...] shall be used in preference to chemically-synthesised allopathic veterinary treatment or antibiotics, provided that their therapeutic effect is effective for the species of animal.
Article 24, Section 1: https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CEL...
Let me borrow a quote from Tim Minchin:
"By definition, Alternative Medicine has either not been proved to work, or been proved not to work. Do you know what they call Alternative medicine that's been proved to work? Medicine."
So the EU law actually says that ignorant quackery (herbal medicine) and fraudulent for-profit quackery (homeopathy) shall be preferred to any natural or synthetic remedy that has been proved to be effective (allopathic = evidence based medicine).
Aside from the resistance issue, one reason for this is quite simple; antibiotics in the milk mean you can't make cheese with it. If a cow needs antibiotics, they are separated from the herd for a few days until they are clear (and also can't be slaughtered for meat for a longer period of time).
But that does not mean the law should promote or enable quackery. See my other comment.