These are the greatest thing ever! Every time I see them in a drug store I
buy them.
Comes with an adapter that corks any size bottle with a flip top that opens to fit the syringe. All you need to do is tip the bottle upside down with the syringe attached to the cork and fill up the syringe to the level you need. It also comes with a 5ml graduated cylinder with a pour out lip.
Some people slap a candy bar in the basket as they make their rounds. I slap one of these in there.
Some of the flip tops on the corks fit tighter than others. When you get one that closes tight, you can pressurize the bottle with air and still keep it sealed somewhat. I don't know how this will affect the steeping process but I'm setting up and experiment today to see if it helps. One bottle just sealed, another allowed to breath for a day and another sealed with the cork and pressurized.
All of this done with FP cause it's all I have right now.