How to Use an iSi Soda Siphon to Carbonate Housemade Sodas

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Okay, so the title might make this seem super elementary, but I’ve got to say that after traveling the world and watching bartenders – especially those in cocktail competitions – dispense a foamy soda that quickly turns flat, I thought I would post a quick video showing you how to solve that problem.

It’s a really simple hack but one that makes a ton of difference, so if you’ve ever experienced any frustration with your housemade soda from an iSi Soda Siphon, watch this video. I hope it helps!

4 Replies to “How to Use an iSi Soda Siphon to Carbonate Housemade Sodas”

  • Hey Jeffrey,
    this works nicely if you’re building a 200ml lemonade. Since those bullets are more than 50 cents over here in the EU it’s an expensive lemonade – that needs a shitload of single-use metal – though.
    And using this hack but only dispensing 30-60ml in fizzes/daisies: the liquid will go flat quickly. How do you keep that carbonation in the liter of soda to use over the course of a day or three, please?
    Hoping to learn the final piece of the puzzle in this,

    Robert from Berlin

  • Spamalot says:

    Hey Jeff, I have an iSi whip rather than an iSi soda siphon, and I’m never able to get the carbonation of my liquids right (including just water). Does the technique of depressurizing the headspace and then removing the lid to pour the soda also work for an iSi whip, or is this a case of me having the wrong tool for the job? Thanks!

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