Got half of my first one-gallon batch done. I'm doing a Grodziskie/Graetzer and want to "dial in" the recipe. Since I don't want five gallons of marginal beer, I'm brewing only one gallon with the intent to scale up if I like the results. The procedure is easy: Calculate the recipe, round values to values you can measure (for example, my scale can only measure one-gram increments so hops are in grams). I'm using a bag for my lauter system - immerse the bag in the water, heat it to strike temperature in the kettle, keep tempering - the temperature changes quickly in a stainless steel pot - and stir frequently. To sparge I just dump my sparge water in, stir, let stand a bit and pull out the bag, letting it drain in a strainer that fits my 5-gallon pot. I'm souring the mash so my lacto is confined to a kettle I'm going to boil for an hour so contamination of my brewery equipment shouldn't be a problem. Tomorrow night, if soured enough, I'll complete the brew.