To make potato vodka at home, you would need 14 gallons of water, 25 pounds of potatoes, 5 pounds of crushed malted barley, a mash pot, a thermometer, a long mixing spoon, and an appropriate heat source. For the fermentation process, you would need a fermentation bucket or container, yeast, a siphon, a cheesecloth, iodine (optional), and a hydrometer (optional). For the distillation process, you would need a still, fermented and strained vodka water, cleaning products, and column packing.