Trim Choc Challenge

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Trim Choc Challenge
First for Thirst
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Fair Foods, Hot Drinks Department,  Pannal
House, Aidans Road, Western Park. Dear Primary
School Research Team,
We are writing
to you in the hope that you can help our Drinks
Department. Our company, First for Thirst, is
developing a new hot chocolate drink for teachers
to enjoy when they are on their break-time
playground duty. Our new drink is made with a
pre-prepared powder to which you add hot water
and stir. Our feedback from teachers suggests
that the drink should be low in calories so we
have developed three new sweeteners to use in
place of sugar. We tested the sweeteners and
would be very grateful for your help in looking
at our results. We would like you to advise us on
which sweetener is most suitable to use in the
drink.
First for Thirst
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•  There are a number of factors that you must
  consider very carefully
•  
•   The drink should be made quickly so that the
  teacher can go outside
• immediately.
•      The drink cannot be made with boiling water
  for safety reasons. We
• recommend the water temperature to be
  approximately 75oC.
•      The drink must require a minimum amount of
  stirring so that the
• teacher can concentrate on supervising
  the children.
•  
• Please write back to us to tell us what you find
  out and advise us on the best action to take.
•  
• Yours truly,
• Jack Adamson
•  
• Product Manager

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Sweetener A Sweetener B
Sweetener C     Very fine powder
Small crystals Lumps of
sweetener
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Trim Choc Information   Our experts carried out
tests to see how much of each sweetener
dissolved at different temperatures.
Table 1
    .    
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 Our experts took 25g of each sample, added 200ml
of hot water and observed how many grams had
dissolved when stirring for different lengths of
time.
Table 2
 
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Fair Foods, Hot Drinks Department, Pannal
House, Aidans Road, Western Park.    Dear
Secondary School Research Team,   Thank-you for
the reports you sent from your primary school. We
were particularly interested to read your
conclusion that sweetener B was the most suitable
sugar substitute to use in our Trim Choc
drink.   Since receiving your advice, we are
pleased to report that our engineers were able to
adjust the design of the dispensing machine so
that it pre-mixes the drink, therefore
eliminating the need for stirring.
First for Thirst
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You may have heard of the success of Trim Choc.
The drink has been a very popular choice with
teachers throughout Yorkshire. However, recent
feedback has shown that there are problems when
teachers go outside. Small particles of sweetener
appear around the rim of the cup and solid
material is left at the bottom of the cup when
they have finished drinking. We would like you to
investigate this further and advise us, once
again, on which sweetener is most suitable to use
in the Trim Choc drink. We have provided you with
a graph showing results of some more tests we
carried out. We would like to remind you that,
once again, we have used 25g of sweetener in our
trials. We look forward to receiving your letter
of reply. Yours truly,  Jack Adamson  Product
Manager
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25g of sweetener were added
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Drink cools down to 50oC
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Dear Mr. Adamson, Thank you for inviting our
class to take part in the Trim Choc
Challenge. I think that you are finding small
particles of sweetener around the rim of the
drink cup because This will mean
that. I would suggest you use
sweetenerinstead. This sweetener