Home Seltzer Question


I have one of these isi home seltzer maker dealios that takes about one liter of water and you screw an 8 gram CO2 cartridge to charge it. If I want the seltzer to be more carbonated, is it safe and effective to charge it with second cartridge? I can’t find anything on the Internet, and I neither want to explode my dealio nor waste cartridges if charging with a second one won’t dissolve more CO2 in the water.

Comments

  1. drken says

    I have a seltzer bottle (Whip-It brand) and I’d advise against it. I’m not sure if it would explode, but doubling the pressure of any pressurized container is generally a bad idea. Especially if you’re going to be holding it. What I found works best is to make sure the water is as cold as possible and use the seltzer immediately after making it.

  2. says

    If you really want fizzy fizzy soda, you should look at getting a restaurant-grade soft drink pressurizer system (make sure you use food grade CO2)

  3. Trebuchet says

    Charge it with as many CO2 cartridges as you like. If it blows up, it’s the fault of Republicanne Filthe. Or something.

  4. grendelsfather says

    … I neither want to explode my dealio nor waste cartridges if charging with a second one won’t dissolve more CO2 in the water.

    and you call yourself a scientist?

  5. tbrandt says

    Effective? Yes. Safe? Probably. I carbonate my water with a sodastream canister and fizz it more than seltzer from the store. Those bottles are plenty sturdy enough. Also, you should be able to get a better fizz by using cold water from the fridge rather than cool water straight from the tap, since gas solubility is such a strong function of temperature.

  6. Bruce says

    Probably safe. Surely some people somewhere have tried it and not gotten famous for suing the company. No warning probably means it’s safe these days.
    Effective? Well, it probably adds a bit more, but I doubt much more.
    The first can likely gets you near the equilibrium amount.
    Probably you’ll get more carbonation at the end of the process by using the coldest water, than by wasting a second cartridge.
    Higher solvent temperatures overwhelm the solvation energy benefit that keeps nonpolar CO2 solvated by polar H2O. So stick with carbonating icewater. Good luck.

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