I recently bought a 0,5L siphon to try (amongst other things) making some foams.
My first two attempts sadly have failed.
This is my last attempt:
1) Two sheets of gelatine soaked in cold water for 5-10 mins
2) 0,25L Monin raspberry syrup heated
3) I add the gelatine to the syrup while stirring and it quickly dissolves.
4) I then let the syrup sit until it gets to room temperature.
5) When at room temperature, I add the syrup to the siphon, close it, and load it with two chargers, shaking vigorously after each charge.
6) I then put the siphon on it's side lying in the fridge for about 5-6 hours.
When it came time to test the foam, nothing but gas would come out of the siphon. When I opened the siphon, the syrup had turned into a quite firm gel covered by what looked like a thin layer of foam.
I have a few theories about what could have gone wrong, but I'd like your opinion and advice as well, before my next attempt. After two failures, I need a success
My theories:
1) Too little syrup (0,25L for a 0,5L siphon) / roo few chargers. Maybe the pressure in the siphon was not high enough to push the gas into the syrup? Could more chargers have helped, or should I get a 0,25L siphon? (I would rarely be making foams from 0,5L fluid)
2) Should have shaked the siphon just before trying to eject the foam.
3) Too much gelatine, making the gel too firm for the gas to push it out.
4) Should the siphon be stored upside-down in the fridge? At least then the gas not in the gel, would be pushing the gel out, instead of just ejecting all of the gas leaving me to scoop out the gel manually afterwards
Any help will be much appreciated!
