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Food preservation experiments

Overall rating 4 out of 54.5 (2 ratings)

Last updated 26 March 2012, created 11 August 2011, viewed 2,833

To be conducted over 2 lessons. Working with instant custard powder, custard powder made with milk, apples, runner beans, banana. 1). Custard:-cooking and chilling, cooking and freezing. 2). Apples and runner beans:- to blanch or not before freezing. 3). Bananas:- can you freeze a whole banana? Can More…you freeze raw slices? Discuss:- enzymic browning, blanching, modified starch, ice is bigger than water! Also includes a 5 minute video from CBS News all about freezing food.

Downloads and web links

  • for pupils

  • Word documentTest
    Food Preservation - OCR Past Qs.docx (17kb, Word document)
  • Video documentTutorial— Video
    Freezing Food Facts 5mins.mov (33mb, Video document)
  • Word documentWorksheet
    Preservation Experiments - Results ws.docx (14kb, Word document)
  • Word documentActivity
    Preservation Experiments.docx (15kb, Word document)
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This was a very useful resource and saved me heaps of time.

from patsyatsy, 26 March 2012
(report comment) 5 out of 5

A good set of experiments that will be fun and informative when carried out in the classroom. Lots of direction and guidance provided.

from Spencer_DT, 03 January 2012
(report comment) 4 out of 5
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Contributed by

janharper"s avatarjanharper

Specialist subjects
Design and Technology, Food Technology, Information Communications Technology (ICT)
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