The Six Step Transformation of a Toasted Marshmallow

Its safe to say that we got up to a lot more cooking in the woods than I expecting. From toasties, popcorn and my personal favourite was when we made pizzas. Thank god I took lots of photos of that activity because no one seems to believe me that it actually happened or the fact that it actually tasted really nice!

One cooking activity that we participated in at lunchtime every week without fail was marshmallow toasting! After all what is a campfire without marshmallows? As well as them being a fun and tasty addition to forest school, there must also be some science behind the change that happens when toasting a marshmallow? Well its actually due to a chemical reaction from the sugar in a marshmallow turning into carbon when heated.

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A marshmallow goes through 6 stages to become the perfect toasted marshmallow:

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It is also thought that the part of the fire can have an impact on the toasted marshmallow. A fire has two main kinds of heat. Firstly there is hot gasses coming off the fire as flames (this is called connective heat). The other main part of heat coming off the fire comes off of hot cols (radiant heat). The best way for a marshmallow to toast and not burn is to use radiant heat. Who knew that so much went into marshmallow toasting ?!?!?

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References:

https://www.exploratorium.edu/cooking/candy/activity-mallows.html

http://forestscience1.blogspot.co.uk/2013/04/marshmallows.html

http://www.npr.org/2012/06/12/154781777/summer-science-the-perfectly-toasted-marshmallow

http://sanmccarron.blogspot.co.uk/2012/01/marshmallow-chemistry.html

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