I've seen some great Mentos and Diet Coke eruption videos on Youtube, and I've always wondered whether other soft drinks work too.
Here comes the science.
The Mentos eruption works just as well with any kind of soft drink, but it doesn't work with Fruit Mentos or sparkling water. It will be more explosive with powdered Mentos because of the increased surface area.
12 bottles of various soft drinks and 12 packets of Mentos were bought from a local supermarket. The bottles were opened and a packet of Mentos (eight sweets) was dropped into the bottle using our patented delivery mechanism (an empty Berocca tube).
Screenshots were taken from the video at peak foam. The images were scaled to make the bottles the same size and the eruptions were plotted on a pretty graph.
The average heights of the eruptions were calculated. Note that Coke Life and sparkling water were not included in either of the diet or regular averages.
- Average height: 26cm
- Average diet drink height: 26cm
- Average sugary drink height: 34cm
- Average Tesco drink height: 32cm
- Average Coca-Cola drink height: 28cm
Our experiment shows that soft drinks containing sugar can produce higher eruptions than diet products, and that it does work with Fruit Mentos but not with sparkling water. Powdered Mentos do not produce a higher plume than whole sweets.
Sadly our delivery mechanism left a lot to be desired, and to be honest the height of the eruption a lot to do with how many Mentos were delivered into the bottle before it started foaming.
Wikipedia explains the science behind it. The world record for the most number of simultaneous Mentos and Soda fountains is 4,334 bottles at once!
Thanks very much to my awesome cameramen Jay-yoh and K-Herb.
In ten days we're leaving the UK for new adventures in Spain...Read more
Archive2016December 2016 (2)November 2016 (2)October 2016 (2)September 2016 (3)August 2016 (4)July 2016 (5)June 2016 (4)May 2016 (4)April 2016 (5)March 2016 (4)February 2016 (4)January 2016 (5)2015December 2015 (4)November 2015 (4)October 2015 (5)September 2015 (4)August 2015 (4)July 2015 (4)June 2015 (4)May 2015 (5)April 2015 (4)March 2015 (4)February 2015 (4)January 2015 (4)
What's this about?
Hi I'm Mat and I'm addicted to new hobbies. I used to think this was a bad thing but now I'm embracing it.
Writing them all up in this blog encourages me to finish projects, and helps me keep track of which ones I've tried.
I've wanted to try this ever since I saw Fight Club! I've seen several methods for making soap, but I'm always attracted to using dangerous chemicals, so lye seemed the obvious way to go...
Also in Food and drink...
When I told a friend I was going to make salt, her reaction was 'why bother?'...