It wasn’t a long time ago that drinking a glass of milk was a gamble with your life. Our modern-day immune systems have 19th Century Frenchman, Louis Pasteur, to thank for being able to enjoy our morning cereal and cuppa without a splash of tuberculosis or typhoid!
The innovative chemist cracked the code to healthy milk when he heated the dairy goodness, aka ‘pasteurisation’. Harmful bacteria cannot survive in milk at a certain temperature (roughly 65°C), safeguarding our health since 1864.
But how has pasteurisation developed from the laboratory of Louis Pasteur? Read on as we explore how pasteurised milk dominates the modern dairy market, why it is beneficial for us, and how it is embracing sustainability in the 21st century.
How Is Milk Pasteurised?
TL;DR: Heating milk to high temperatures for a short time kills germs that can make you sick.
Modern milk pasteurisation most commonly occurs through High-Temperature Short-Time (HTST) pasteurisation. Here’s how the process works in two simple steps:
- Raw milk is rapidly heated to 65°C (161°F) for at least 15 seconds. This brief but intense exposure to heat is enough to kill harmful bacteria and pathogens that could otherwise cause illness.
- Immediately after this heating phase, the milk is rapidly cooled down to around 4°C (39°F) to prevent any surviving bacteria from multiplying.
This entire process is automated and closely monitored to ensure that the milk is treated effectively without compromising its nutritional value or taste.
Essentially, pasteurisation gives your milk a safety seal of approval, while simultaneously extending its shelf life.
Wait, What About Ultra-High Temperature Pasteurisation?
In 2024, there is more than one way to pasteurise your milk!
For long-life milk, Ultra-High Temperature (UHT) pasteurisation is more effective. This method follows similar steps as HTST, but cranks up the temperature higher for just a few seconds – making it safe to store for longer without refrigeration.
Both HTST and UHT are critical tools used by the dairy industry to keep your milk safe. If you are looking to keep your office stocked with high-quality, safe-to-drink milk, find a customisable milk delivery with Office Milk Deliveries!
Why Is Milk Pasteurised: The Benefits
But why is milk pasteurised in the first place? Misinformation on pasteurisation circulates on social media, so let’s dive into the reasons why pasteurisation is so important.
Safety and Health
Don’t believe unfounded myths that claim pasteurised milk causes lactose intolerance or allergic reactions.
Firstly, pasteurised milk does not cause lactose intolerance. Lactose is a sugar found in cow’s milk. It is broken by lactase, an enzyme in our gut. Lactose intolerance typically stems from lower lactase levels. Lactase is not found in milk, therefore pasteurisation has no impact on lactose intolerance.
In terms of allergic reactions, adults and children can possess milk allergies. This allergy is triggered by milk, regardless of whether it is raw or pasteurised. Pasteurising milk cannot cause or create allergic reactions.
With the fake information crushed, it’s time to reveal the benefits of pasteurised milk:
- Pasteurisation eliminates harmful pathogens (Salmonella, E. coli, Listeria) commonly found in raw milk, preventing severe illnesses. These pathogens can be found in raw milk, and once ingested, can cause severe issues. Pasteurisation kills these harmful microorganisms, ensuring your milk is clean to drink.
- Widespread pasteurisation has significantly reduced milk-borne disease outbreaks, ensuring a safer milk supply for consumers globally. In 1938, an estimated 25% of all disease outbreaks (related to food/water) were due to milk in the United States. Today, thanks to pasteurisation, milk accounts for less than 1% of reported outbreaks.
Extended Shelf Life
One benefit of pasteurisation we take for granted in the modern world is milk’s lengthy shelf life. By eliminating the bacteria responsible for spoilage, pasteurisation not only ensures safety but also keeps milk fresher for longer.
HTST pasteurisation is able to extend the shelf life of milk to around three weeks – over four times the shelf life of raw milk! The extended shelf life of milk is particularly beneficial for office based companies, where consistent freshness is crucial to keeping your team’s coffee flowing. Countering rapid deterioration also reduces the amount of waste and trips to stock up the fridge.
Are you ready to embrace sustainability in the office? Keep your fridge stocked with high-quality milk using Office Milk Deliveries’ eco-friendly services – apply today in just 60 seconds!
Nutritional Integrity
Another myth that plagues pasteurisation is the claim that heating milk strips it of its nutrients. Unsurprisingly, it doesn’t.
The process is carefully calibrated to preserve essential nutrients like calcium, protein, and vitamins while ensuring safety. Only heat sensitive vitamins like vitamin B2 and folate are impacted by pasteurisation, with small decreases noted in studies. This impact is minimal however, as the concentration of these vitamins are naturally low in milk.
This means with pasteurisation you still receive all the health benefits that make milk a powerhouse of nutrition – strong bones, healthy muscles, and a rich source of vitamins – without any compromise on safety.
Is Pasteurisation Sustainable?
Heating milk has developed significantly from Louis Pasteur’s experiments on a summer holiday in Arbois. Modern pasteurisation techniques are designed with the environment in mind.
- Enhanced Energy Efficiency: Modern pasteurisation processes employ heat recycling, significantly reducing energy consumption compared to traditional methods. This eco-friendly approach minimises the environmental impact of milk production, so you can feel great about the planet the next time you’re sipping ice-cold milk.
- Reduced Environmental Footprint: By optimising energy use, the dairy industry contributes to lower greenhouse gas emissions, making pasteurised milk a more sustainable choice than ever before!
How Office Milk Deliveries Can Upgrade Your Team
So you know the score with pasteurised milk, but how can it make a difference in your office? The key to keeping your team healthy, happy, and fueled starts with a fridge full of delicious milk.
Without milk, your employees won’t be able to fully enjoy their tea or coffee. This could impact your bottom line. A recent workplace study by Sense HR found that after a week without coffee breaks, almost 80% of employees noted a decrease in productivity of around 23%.
If you want to keep your employees firing on all cylinders, consider exploring a customisable milk delivery solution with Office Milk Deliveries. We offer a range of delicious dairy and plant-based alternative milks that can fit any team’s unique needs.
Reach out to one of our milk experts today and find a solution in just a few clicks.
Final Words
So there you have it – pasteurisation is a scientific process with your health at its core. By heating milk, it can extend the shelf life and remove harmful bacteria, all while retaining the essential nutrients.
Next time you pour yourself a refreshing glass or splash some into your coffee, you can feel good knowing that the work of a French chemist in the 1860s continues to work its magic in the modern day.
Want to upgrade your office with high quality milk? Apply for a free quote to tailor a milk delivery solution to your workplace!