Can I naturally carbonate / secondary ferment in iKeggers?
In short, absolutely. We have 2 caps that have pressure relief valves in them, the double ball lock spear and the keg carbonation cap. Alternatively make sure to accurately calculate the amount of sugar you use and just use the cap that comes with the kegs. While our kegs and growlers have a large margin for error, you can imagine the mess an exploding keg makes compared to a bottle.
Can I force carbonate in iKeggers?
Absolutely! One of the greatest thing about kegging over bottling is the ability to carbonate your beer as soon as primary fermentation finishes. There are 2 things you need, a source of compressed CO2 and cold liquid. Without the liquid being chilled it is very difficult for it to absorb the CO2 needed for carbonation. Until now this has meant that in order to carbonate your keg you needed a dedicated fridge for it and it would need to fit at least a 10L or more likely a 19L keg in it. With the iKegger range you can store your brew flat at room temp in a 19L keg or the conical fermenter and keep the smaller kegs in the fridge for carbonating. This generally takes about 18-24hrs at 25psi so you can fill it before bed and have it ready for the next evening. You can even speed that up, if you chill a keg of beer, attach the regulator at 25psi and gently rock or swirl the keg you can have frothy suds in less than 10 minutes! (you will need to wait for the beer to settle for an hour or more before you can pour it though)
Warning: If you intend on leaving beer for a longer period of time to force carbonate then do it at 10-12 psi (this is normal drinking level of carbonation) if you set it to a higher psi and leave it too long your beer will be over carbonated.
Here is a tool you can use to help determine the exact keg pressure required:
Can I use larger CO2 bottles with my iKeggers?
Yes! Our professional quality regulator comes with adaptors that fit 16g threaded CO2 canisters, these are ideal for taking beer with you out and about as they are small and lightweight. If you plan on force carbonating a lot of beer though they can become expensive (the cheapest you'll find them is about $1.10 each if you buy in large bulk numbers, we buy them in the thousands) To combat this we have another adaptor custom made for us. The sodastream adapter allows you to fit a 400g Sodastream bottle to it, these are the equivalent of 25 x 16g bulbs and are easy to swap for full ones at thousands of retailers around Australia. These are great as they are still portable and fairly lightweight but about 1/2 the price and hold enough gas to carbonate and dispense about 50L of beer or two whole home-brew batches. (see this map to find a place near you that swaps them: http://www.sodastream.com.au/locator/) We also have available a different mini regulator that is for using 2.2L disposable CO2 and Nitrogen bottles. These are great for home-brewers who use a larger amount of gas or anyone who wants the option of doing stouts, coffee, cocktails etc on nitro!
How much gas does it take to carbonate and dispense a mini keg?
One 16g CO2 bulb should dispense approx 6L of carbonated drink In terms of carbonation there are a lot of variations between styles of beer and personal preference however 1 x 16g bulb should be enough to carbonate a 4L mini keg.