Re: (OT) General rants
Posted: Tue May 02, 2017 4:12 am
So far off topic, but hey... it's the general chat area
I did a quick look to find some comparative data on illnesses from pasteurised vs unpasteurised milk. What I found is that yes, overall the total numbers are comparable. However, I think attention also needs to be paid to the population values for each of those. I'm not from the US (so happy to be corrected if I'm wrong in this assumption), but I assume that there is far greater consumption of pasteurised products rather than unpasteurised. As such, if there are similar total illnesses, that still indicates that unpasteurised milk does cause a higher rate of illness.
At the same time, while a lot of people claim to drink raw milk, I've found it's not uncommon for people to drink unhomogenised milk thinking it's 'raw', not realising that it's still pasteurised. Not saying this is you, since you clearly know the difference, but I've seen people who don't.
Also, looking at the list you gave, I did a quick search on some of them. I'd be careful in relying on some of those (particularly the ones from earlier on). For example, for the one in 1927, it's dubious whether the milk being referred to was actually pasteurised, since the requirement for pasteurisation was only new, and poorly enforced. Given this was 90 years ago, it's really hard to say either way, but it does suggest it's not really great authority for any argument.
Also, given that pasteurisation is about reducing risk (as opposed to claiming to make it 100% perfectly safe), I'd suggest that that same milk in its raw form would have also been contaminated - but with higher quantities of the bacteria (thereby likely making the outbreak worse).
So yes, this is certainly a risk - but, this would equally apply to raw milk.
So, overall, if we're talking about drinking raw milk straight from a healthy cow, in a short amount of time - I tend to agree. However, if we're talking about milk which is then transported, bottled, transported again, and consumed potentially weeks later, then I think it's a different story.
I believe the issue with raw milk isn't usually when it comes straight from a (healthy) cow and is consumed in a short amount of time. I too have had that at times - tastes great. I believe the issue is more when it is then stored and transported, and not consumed in an appropriate amount of time.Halaster-Blackcloak wrote:I ended up doing a lot of research on it (admittedly for America only) and discovered that all the major outbreaks of illness in America in the past 90 years (actually from 1927 to 2006) has been from pasteurized milk. Illness from raw milk - actual, investigated and proven illness - is as rare as hen's teeth and even then it's usually just 1 or 2 people getting mildly ill. The largest outbreak of salmonella in American history is right near me, in a suburb of Chi-raq in 1985 I believe. There were 197,000 people affected, with 16,000 culture confirmed cases of people getting seriously ill and about a dozen killed from pasteurized milk. I've been drinking raw milk for years and years. Never got sick from it. No one I know of who drinks it ever has either. Here's some info I write up for the doctor I do research for:
I did a quick look to find some comparative data on illnesses from pasteurised vs unpasteurised milk. What I found is that yes, overall the total numbers are comparable. However, I think attention also needs to be paid to the population values for each of those. I'm not from the US (so happy to be corrected if I'm wrong in this assumption), but I assume that there is far greater consumption of pasteurised products rather than unpasteurised. As such, if there are similar total illnesses, that still indicates that unpasteurised milk does cause a higher rate of illness.
At the same time, while a lot of people claim to drink raw milk, I've found it's not uncommon for people to drink unhomogenised milk thinking it's 'raw', not realising that it's still pasteurised. Not saying this is you, since you clearly know the difference, but I've seen people who don't.
Yes, there are still pathogens in pasteurised milk. The process is not about killing everything in there (unless you're talking about UHT milk which gets pretty close). The purpose is to vastly reduce the number, thus reducing risk of infection, and slowing further bacterial growth (thereby giving it a longer shelf life). I don't think I've ever seen a claim that pasteurisation makes it 100% safe. I don't think anything ever really is. It's just about reducing risk.Halaster-Blackcloak wrote:Pasteurized milk is NO guarantee, nor is it sterile. All of the pathogens attributed to raw milk have been found in PASTEURIZED milk and caused grave illnesses.
Also, looking at the list you gave, I did a quick search on some of them. I'd be careful in relying on some of those (particularly the ones from earlier on). For example, for the one in 1927, it's dubious whether the milk being referred to was actually pasteurised, since the requirement for pasteurisation was only new, and poorly enforced. Given this was 90 years ago, it's really hard to say either way, but it does suggest it's not really great authority for any argument.
Also, given that pasteurisation is about reducing risk (as opposed to claiming to make it 100% perfectly safe), I'd suggest that that same milk in its raw form would have also been contaminated - but with higher quantities of the bacteria (thereby likely making the outbreak worse).
Yep, contamination can occur through processing - however, this typically occurs through late stages of production, such as bottling, etc. where things haven't been cleaned properly. This could have the effect of making individual outbreaks worse. However with fewer, larger producers (rather than lots of smaller producers), this also reduces the frequency, and thus should not really affect the overall numbers (assuming appropriate cleanliness standards etc are held the same). My experience has usually been though, that larger producers (of anything) tend to have greater scrutiny than smaller ones. (Anecdotal evidence warning) I spent a while in an internal audit role, which included food handling/safety practices. I've seen some pretty shocking things - especially in the smaller places.Halaster-Blackcloak wrote:Due to the centralized nature of this processed food, the outbreaks are much more pervasive.
So yes, this is certainly a risk - but, this would equally apply to raw milk.
So, overall, if we're talking about drinking raw milk straight from a healthy cow, in a short amount of time - I tend to agree. However, if we're talking about milk which is then transported, bottled, transported again, and consumed potentially weeks later, then I think it's a different story.