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Beetroot Red Food Colouring (Betanin, E162)
Beetroot's colour, betanin, is a permitted food dye (E162) with no safety concerns. It is bright bluish-red in slightly acid liquids and turns blue-violet, then yellow-brown, as they become alkaline, so a few drops colour icing, drinks or the water in a flow experiment.
The picture: a cut beetroot, coloured by betanin.
Baguhan
An hour
Mga Tagubilin
1
1
Chop and steep
Chop and steep
Peel and chop the beets small and just cover them with water in a saucepan.
Mga materyales para sa hakbang na ito:
Beterabel500 g
Tubig300 mlMga kailangang kasangkapan:
Kutsilyo
Kasarolang mataas ang gilid2
2
Simmer gently
Simmer gently
Simmer gently for about 15 minutes until the water is deep red. Do not boil hard.
Mga kailangang kasangkapan:
Kasarolang mataas ang gilid
Pang-init na Plato3
3
Strain and reduce
Strain and reduce
Strain through muslin, squeezing the pulp, and simmer the liquid down to about a third for a stronger colour.
Mga kailangang kasangkapan:
Telang muselina na pansala
MangkokKasarolang mataas ang gilidPang-init na Plato4
4
Bottle and keep cold
Bottle and keep cold
Bottle it and keep it in the fridge. Keep it away from alkaline mixtures such as baking soda, which turn it brown.
Mga kailangang kasangkapan:
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