In Reply to: Thickening powder to put in liquids posted by Frangipanni on Wednesday, 1. January 2014 at 06:25 Bali Time:
One thing that can be bought easily over there is rice flour (eg dinely ground rice). Perhaps buy some here and experiment with it first before travelling. I use it to make banana pancakes at home, but that is heating it in a mixture. Maybe it would work mixed into cold liquid, and it is quite bland so would hopefully not spoil the taste of juice etc