general information Flashcards
what temperature should a domestic freezer be?
-18*
where should you store uncooked meat in the fridge?
covered on bottom shelf
when does bacteria become active?
when defrosted
what is gluten?
a protein
what type of flour has the highest gluten content?
self-raising
what forms can gelatine come in?
- powder
- leaf form
what are the 2 types of gelatine and how are they prepared correctly for use?
- sheet/leaf gelatine is soaked in cold water then put into a warmed liquid
- powder is sprinkled onto surface of liquid and left to ‘sponge’ for 5 minutes before being warmed in a Bain-marie to dissolve
what is gelatine and how is it produced?
gelatine is a protein which is extracted from the collagen present in skin, bones, tendons and connective tissue cattle that have been slaughtered for meat
explain how gelatine works?
when the water is trapped in this way it forms a gel. if the gel is then heated above 35*C it becomes a liquid and is called a Sol. when cooled the Sol becomes a solid and this process is called gelatinisation.