Thanks very much. I am asking for bottles and a capper. The coke bottles are great because they were going to be trash anyway. Once I have the capper, I'll start saving old beer bottles to reuse. What exactly is a kettle? Right now I just use a big pot on my stove.
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Coke bottles are fine, but keep them out of sunlight or florescent light to avoid skunking (once they are filled with beer...)
In general a "kettle" is the boil kettle. I use a turkey fryer or a half-barrel keg with the top cut out. Many people buy a large Stainless or aluminum kettle (a couple of gallons larger than your maximum batch size.)
A Hot Liquor Tank can also be a kettle, but most people call them an HLT if they have one. You may not need or want an HLT if you are doing BIAB. I usually use one for sparging (rinsing the wort from the grains after lifting the bag out of the boil kettle (and in this case mash tun too...)
The process of BIAB could be as simple as this:
Crush grain.
Heat water in Boil Kettle
Mix crushed grain with water in boil kettle lined with a mesh bag
Wait 60 minutes keeping temp at about 152-156F (This is mashing, or more technically the Mash Rest)
Lift bag and drain
Turn up the heat and boil, adding hops and stuff
If you were to sparge, then after lifting bag and draining you could dunk the bag in another pot of water to further rinse the sugars creating a more dilute wort and then adding that to the boil kettle. This is a more efficient method, grain-wise, but adds a step and a vessel. You don't have to sparge if you spend a few more $$ on grain to make up the efficiency difference.