I hear what you are saying, but I think I do want to do 5 gallon batches. Most of the recipe packs are for 5 gallons, as are all the youtube instruction videos. I think I will buy the smaller, 50 dollar kit, and add a 5 gallon pot. In addition, I will buy bottles and caps, and I think I should be right around 100 dollars for my initial investment, including a 20 dollar beer recipe. Now it seems to me that my per batch costs will be right around 25 dollars: 20 for a recipe, 1.50 for caps, about a dollar for sanitizer, and a few extra bucks for electricity. Does this seem right to you? Am I underestimating the power bill, or missing any other expenses?
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Underestimating the cost of the 5 gallon recipe kits. Most are going to run you between $35-50 with yeast. Extract is not really all that cheap. You don't need to buy your bottles, just save them and soak them in oxyclean free to get the labels off and all of the gunk inside out. Sanatizer will be way les than a dollar per batch and electricity will be nothing. A word of warning, with a 5 gallon kettle for a five gallon batch, it means that you will need to do a concentrated boil and dilute in the fermentor.