Does Mentos cool things off?

 Does Mentos cool things off?

This is my science project.


My science project is will Mentos cool things off. Cool Mint Sugar free Mentos are made out of Isomalt, maltitol syrup, mannitol, hydrogenated coconut oil, polydextrose, sorbitol, gelatine, gum Arabic, mono and diglycerides of edible fatty acids, sucralose, sucrose esters of fatty acids, dextrin, natural & artificial flavor, color (titanium dioxide), glazing agents (carnauba wax, beeswax). People on commercials say you will have fresh breath after eating Mentos in this project you will find out if it’s true.

Mint plant is Close relatives of spearmint, peppermint, curly mint, ginger mint, apple mint, pineapple mint, eau de cologne mint, water mint, pennyroyal, Corsican mint.

Where mint plant grows

  • Mints will grow in most conditions but not too dry
  • Likes damp, moist soil with shade at the roots & sun on the leaves
  • Will tolerate some shade.
  • Can be very invasive ideal for containers or in buckets in the ground to restrict root growth.

Parts used

  • Leaves


  • Pleasant smell & taste
  • Has antiseptic qualities – used as a mouth freshener


  • Spearmint and peppermint aid digestion
  • Mint jelly and sauces
  • Peppermint oil used as a flavouring in drinks, confectionary, medicine, soaps and toothpaste
  • Tonic, cough mixtures, bronchial trouble, asthma
  • Cleaning wounds
  • Gargles and mouth washes
  • Vermin deterrent – rats and mice dislike mint
  • tea


  • Used by monks in medieval times for its culinary and medicinal properties


I think mint will cool things off.


  • Pack of Mentos
  • 2 glasses of hot water
  • Thermometer
  • Pen and paper for notes


  1. Get 2 glasses of hot water and take a thermometer.
  2. Place 5 Mentos in the glass of hot water and take the temperature again.
  3. Place more Mentos in the glass of hot water 5 at a time and record if you see a change at all.
  4. The other glass of water is to be used as a reference.  This is how we know if mint actually cool water off by looking at the temperature.
  5. Record your results if you see any changes.


  Initial temp.  ◦C After 5 min After 10 min After 15 min After 20 min After 25 min
Minty water 70 No change No change 50 47 43
Control water 70 No change No change 50 45 45



After 5 minutes I saw no change. Then after 10 minutes there was no change. After 15 minutes I saw the minty water was 50oc and the control water was 53oc.  After 20 minutes I saw the minty water was 47oc and the control water was 45oc. Then after 25 minutes I saw the minty water was 43oc and the control water was 45oc.


I learned that minty water cools water down a bit more than control water.

Bibliography: march, 13, 2013, Wednesday march, 14, 2013, Thursday march, 14, 2013, Thursday

10 thoughts on “Does Mentos cool things off?

  1. your experiment is done perfect. You can have a changing control. your conclusion does prove cool stuff.You adding mentos in the glass places the water and results in a greater surface area for water to cool. YOUR AWESOME AND GREAT AT SCIENCE!

  2. Im using this as my reaserch topic part to and this is my topic for the actuall expiriment also last year i got third place in the science fair when i did does temperature change the ph of acids 🙂

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