max wrote:Do not cut the top off you want to keep the handles intact...(I mean you could cut the top off, as it would be easier and quicker, but then it would be a bugger to try and carry/move around).
Get a 115mm grinder and cut a circle out. You can get very close with a small grinder, then change the disc over from a metal cutting disc to a grinding disc and you can get a really good finish (no burs or anything). You will probably go through 2 or 3 cutting discs and 1 grinding disc
When you initially puncture the top, gas will escape (still under pressure) and when you have cut a big enough hole dry out the residual beer (to stop all the shavings getting stuck)
Good luck
Generally good advice .... BUT
If you are planning on brewing BIAB, then in my experience you will have an easier time of it if you cut the whole top off and leave yourself with a more or less straight sided pot.
When you pull the BIAB bag out of the kettle - you get the monkey fist effect happening - ie: the bag swells out to as big as the sides of the pot, and has to squeeze through the smaller opening. It makes it harder to physically pull out, and can make wort run down the sides of your pot.
This doesn't happen when the opening is the full width.
But handles are good to have as well. So I suggest you follow max's advice, but be prepared for the fact that you might experience a couple of problems (not really severe I'm guessing) - and if you do... cutting the whole top off will solve them for you