Ask our health expert, Pamela Allardice

Ask our health expert, Pamela Allardice Health and wellness advice Natural health expert Pamela Allardice gives you alternative solutions to your everyday health problems. Read through our archives or ask Pamela to help with your health query today!

What is the difference between fresh milk and UHT milk?

Thursday, November 5, 2009
Getty Images

Question: What is the difference between fresh milk and UHT milk?


Fresh milk, often referred to as homogenised and pasteurised milk, is sold in the chilled food section of the supermarket. It has a short shelf life and must be kept below 4°C to maintain freshness. Ultra heat treated (UHT) milk, which is sometimes called long-life milk, is slightly different. It has had extra treatment which enables it to be stored at room temperature (as long as it is unopened) for extended periods.

Both fresh milk and UHT milk have undergone pasteurisation and homogenisation before packaging and sale to consumers. Pasteurisation involves heating the milk to 72°C for 15 seconds to kill harmful bacteria that may be present. The milk is rapidly chilled, before homogenisation commences. This involves passing the milk through a fine nozzle to create a smooth, creamy taste and texture.

Fresh milk is then packaged and refrigerated, while UHT milk is exposed to a more powerful heat treatment to inactivate harmful bacteria. This allows the milk to be stored out of the fridge while it is unopened. It is important to chill UHT milk once it has been opened.

This information is provided by the Sanitarium Nutrition Service.

Your say: Do you prefer UHT or fresh milk? Share with us below...

comments powered by Disqus
comments powered by Disqus
Recipe Search
Tip: Try "lamb & potato" or "Low GI"

PTSD and obesity links for women .

Women with PTSD at a higher risk of obesity Women who have suffered post-traumatic stress disorder are at a greater risk of food addiction and... More >

The ultimate guide to female fitness after 40.

The ultimate guide to female fitness after 40

Diets and workout fads come and go, but to follow a regime that really works, we asked the... More >

Weekly newsletter

Recipes in your inbox We send you the latest recipes from the Weekly plus all the week's best bits to your inbox.
Sign up now >

Must Read