Why does the Tiger Keg use nitrous oxide (N2O) chargers instead of pure nitrogen (N2) chargers? Different variations of this question come up frequently, so we have an answer for you: The Tiger Keg can use both N2O and N2!
We have experimented extensively with both N2 and N2O and after doing blind taste tests, we found there to be little difference when it comes down to the flavor and experience you get from choosing one over the other. With N2 you will get slightly smaller bubbles, which can give you more cascading during the pour. With N2O, you will still get a beautiful cascade and the gas has a subtly sweeter flavor to it. Not sweet like dumping a packet of sugar into your drink, but more subtle like “Mmmm, that’s niiice!”. It comes down to personal preference, honestly.
We have always recommended N2O chargers to our customers because the N2O chargers are loaded with 8-8.4 grams of gas per charger, and N2 chargers are loaded with 2 grams of gas per charge. In order to get the needed volume of gas inside the keg, you will need to load four N2 chargers back-to-back for a single keg fill (40-48oz). With N2O, only a single charge is needed for a single keg fill (40-48oz). The cost of using four N2 chargers, compared to a single N2O charge, is just not that practical.
At the end of the day, it comes down to personal preference. Give both of them a try if you feel compelled and let us know what you think!