Q. Is it true that the acidophilus in yoghurt is so unstable that it can be destroyed on the short unrefrigerated trip home from the supermarket?

Written by Catherine Saxelby on Wednesday, 05 March 2014.
Tagged: healthy eating, superfoods, yoghurt

Q. Is it true that the acidophilus in yoghurt is so unstable that it can be destroyed on the short unrefrigerated trip home from the supermarket?

A. No. According to a major yoghurt manufacturer, you would have to leave the yoghurt in your car for 24 hours at a temperature of 100°F or 37°C or higher to kill the 'friendly bacteria'. The average trip home of 15 or 20 minutes would not do that. Still high temperatures may cause the total number of bacteria to decline.

Ideally you should bring your refrigerated items home in an insulated carrier bag and pop them straight in the refrigerator. And try to buy from a supermarket with a big turnover so you're buying yoghurt fresh with the maximum live bacteria.

Catherine Saxelby

About the Author

Catherine Saxelby knows nutrition! She is an accredited nutritionist, food commentator, blogger and award-winning author. Her latest book Catherine Saxelby's Food and Nutrition Companion answers all those tricky questions on healthy eating, diets and supplements. It draws together a lifetime of advice and gives you all you need to know to eat right! It's a complete A to Z. A handy desk go-to reference.