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De Omnibus Dubitandum - Lux Veritas

Showing posts with label Food Safety. Show all posts
Showing posts with label Food Safety. Show all posts

Saturday, April 25, 2020

US Meatpacking Bends to Coronavirus Pressure

 
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By Peter Zeihan  on April 23, 2020 @ Zeihan on Geopolitics

Let’s get the bad news out of the way first.

Meatpacking is a messy business almost custom-designed to generate coronavirus outbreaks among the staff. When a cow or hog is brought into the slaughter facility, it is slit, hung, bled-out and then has its skin and organs removed, all in 30 minutes. Since the typical cow weighs a half a ton, it is the ultimate team effort. No social distancing here.

Later on the carcass is broken down into pieces for restaurants, supermarkets with other parts sent on to processing into things like sausages and ground beef. Social distancing is at least possible at these stages, but establishing that all-important six foot bubble means fewer people on the line. That means lower throughput, which means less meat.

Best guess? Roughly 10-15% of the country’s beef processing and 25% of its pork processing is currently offline. We should expect that any plant shutdowns will last at least until the staff recovers. For most young, healthy folks, that’s about three weeks.

There’s also not a lot of spare capacity to ramp things up once these plants reopen. Most plants run two shifts, six days a week. And since most of the labor is migrant, expanding the staff isn’t something that can be done in a few days (or weeks) – especially if a substantial percentage of the staff is out with coronavirus. The issue is amplified in states that have no social distancing guidelines and, as you can see from the map, there is significant overlap.

 

Now the good(ish) news:

Purging a facility of COVID-19 is pretty straightforward. It just requires removing the vectors (i.e. the staff) from the facility and doing a scrubdown. Meatpacking plants regularly close every week or three for top-to-bottom cleaning and sterilization, so this is baked into normal operations.

Nor can you get coronavirus from meat that came through any of the impacted facilities. Most beef and pork is in a chiller for a few days (more than enough time to kill the virus). Multiple sterilization stages are used throughout the slaughter and packing processes (all of which would kill the virus). And then once the meat makes it to your house, you cook it (also, more than enough to kill the virus).

Finally, there will not be a shortage of animal inputs for the meatpackers. America’s ranchers had been steadily increasing their herds for years, both to serve Americans who had been enjoying a ten-year economic expansion, as well as to serve export markets recently opened up by the Trump administration. The ranchers’ problem is too many animals right now (too many to the point that some pork producers are euthanizing and burying hogs because they cannot get them to a slaughterhouse). The issue is not a shortage of animals; the issue is the bottleneck at the slaughter/meatpacking stage of the supply chain.

A Note From Peter

The last few weeks have been rough on all of us. As of March 1, the vast majority of our income here at Zeihan on Geopolitics came from us putting Peter on a jet and sending him to rub elbows with large groups of people. As I’m sure you’ve guessed, that business line has gone to zero.

Some of our subscribers have realized that, and so have suggested that ZoG provide a means of enabling readers to “tip” us in the manner similar to many other podcast and newsletter and bloggers. In essence if you like the newsletter, you can kick us whatever bit of cash you feel is appropriate.

Starting today we are implementing that program, but we don’t want the funds to come to ZoG. There are many, many people out there who are in a far worse position than the ZoG team who ultimately cuts its teeth on disruption and chaos. We’ll be fine. Others are not so fortunate. So we ask that should you wish to chip in, that you do so via Feeding America. FA is a charitable organization that seeks out foods from farmers, processors and retailers, and delivers it to people in need. Nationwide.

One of the biggest problems the country faces at present is food dislocation: pre-COVID, nearly 40% of all foods were not consumed at home. Instead they were destined for places like restaurants and college dorms. Shifting the supply chain to grocery stores takes time and money, but people need food now. Some 23 million students used to be on school lunches, for example. That servicing has evaporated. Feeding America helps bridge the gap between America’s food supply (which remains robust) and its demand (which coronavirus has shifted faster than the supply chains can keep up).

A little goes a very long way. For a single dollar, FA can feed one person for three days.
                                
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Join Peter Zeihan and Melissa Taylor April 30th for an in-depth discussion and presentation on the impact of COVID-19 on global agricultural production and the stability of the world's food supply.
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Future planned invents include:
  • Transport and Supply Chains
  • Manufacturing
  • Industrial Commodities

Tuesday, October 9, 2018

Sanitation In The Food Industry With Peracetic Acid

October 8, 2018 By Michael D. Shaw @ Health News Digest
 
This column first discussed peracetic acid (aka peroxyacetic acid aka PAA) around five years ago. In that article, we described PAA’s antimicrobial properties, and its advantage of leaving no harmful residual. Peracetic acid quickly breaks down into carbon dioxide, oxygen, and water.

PAA is a strong oxidizer, and is thought to kill microbes in a variety of ways…

1.     Sulfhydryl and sulfur bonds in proteins are attacked.
2.     It reacts with many chemical double bonds, impeding cellular processes.
3.     It disrupts the functioning of the cell membrane, and the transport mechanisms of the cell wall.
4.     It can prevent DNA replication.
5.     It will inhibit the enzyme catalase, which catalyzes the breakdown of hydrogen peroxide.

The latter quality is interesting since commercial PAA is supplied as a mixture of peracetic acid, hydrogen peroxide, and acetic acid. Research has suggested that a particular synergy is occurring via a staged process. The peracetic portion of the mix initiates the attack on the cell, damaging its protective systems, allowing the hydrogen peroxide to do its free radical style damage undeterred. This leads to lysis (the disintegration of a cell by rupture of the cell wall or membrane) and rapid cell death.

Within the food industry, PAA is primarily used as a sanitizer during the processing and handling of meats, poultry, seafood, fruits, and vegetables, as well as the bottling of beverages. In 2014, the good folks at All American Chemical published an informative presentation entitled “Premium PAA Sanitation with Peracetic Acid.” Here are some of the key points:

Peracetic acid…
  • Is less affected by organic load (soil) than either chlorine or quaternary ammonium compounds (quat) sanitizers
  • Disperses/penetrates biofilms
  • Kills bacteria, mold, fungus, and yeast
  • Is very fast acting
  • Is non-foaming
  • Does not contribute taste, odor, or color
  • Does not require rinsing
  • Does not form disinfection byproducts
  • Does not add conductivity (Total Dissolved Solids)
  • Is non-corrosive to stainless steel and aluminum
  • Does not fall under the EPA Risk Management Planning (RMP) rule requirement
  • Is easily dispensed as a liquid
  • Is easy to test for
We add the next four points, courtesy of the Aseptic and Antimicrobial Processing and Packaging Association (AAPPA).

Peracetic acid…
  • Does not promote microbial resistance
  • Has efficacy over a wide range of temperature (0-40°C / 32-104°F) and pH (3-7.5)
  • Allows for clean-in-place processes
  • Is unaffected by protein residue
Sounds great. However, most excellent germicides also have toxic properties. In the case of PAA, the American Conference of Governmental Industrial Hygienists has set its Threshold Limit Value at 0.4 parts-per million (in air) for a 15 minute short term exposure limit. Other agencies, including Cal/OSHA and NIOSH have proposed similar regulatory levels.

While federal OSHA does yet have a permissible exposure limit for peracetic acid, other standards do exist. Thus, it has issued Rapid Response letters and citations under the General Duty Clause, for what it deems to be high exposures.

PAA is corrosive/irritating to the eyes, mucous membranes of the respiratory tract, and skin. It causes lacrimation, extreme discomfort, and irritation to the upper respiratory tract in humans after exposure to concentrations as low as 5 ppm for only three minutes.

Last year, NIOSH requested information on health risks to workers associated with occupational exposures to peracetic acid. One of the responses came from The National Employment Law Project, and it raised compelling issues regarding exposures to PAA, in light of its increased use in the meat and poultry industries.

Certainly, changes in workplace procedures and enhanced protective equipment will go a long way in improving the situation, but it is also necessary to monitor the air for the presence of peracetic acid.

PAA, though, is a difficult compound to measure. One reason is because the instrument must detect this chemical at extremely low levels–less than 1 ppm. Another issue is calibration.

No commercial calibration standard exists for peracetic acid, and it is unlikely that one ever will, owing to the instability of the pure substance. As such, Interscan developed an in-house calibration method, which involves generating a stream of PAA, and using wet chemistry analytics to standardize it on the fly. This stream can then be used to calibrate instruments in the lab. The company offers a full line of gas detection instruments, including models for PAA.

Used properly, peracetic acid can be a great boon to food safety and public health.