Bend the pipe so it can pass through the cooling tub. You’ll bring the plant matter to heat in the pressure cooker, and the resulting steam will pass through the pipe. You have to be able to cool that steam back down to liquid by immersing it in a cold water or ice bath. Depending on what you’re using for your cooling tub, you’ll have to bend the pipe in different shapes. For example, if you’re simply using a basin, you might have to bend it into a coil so that it can lay in the open tub. If you’re using a large bucket of ice, you might be able to bend the pipe to a 90 degree angle so that it can go down through the top of the bucket, then out a hole in the bottom.
Keep an eye on the still. After a while, the distillate should begin to come through your condenser and into your separator. The process should be fairly hands-off, but you want to make sure you don’t run out of water in your still. Depending on the length of the distillation process, you may also need to change the water in the cold-water tub. If the hot pipe warms the water up, replace it with fresh cold water or ice so that the cooling process continues to work.
Young children and the elderly may be more sensitive to essential oils. So you may need to dilute them more. And you should totally avoid some oils, like birch and wintergreen. In even small amounts, those may cause serious problems in kids 6 or younger because they contain a chemical called methyl salicylate. Don’t use essential oils on a baby unless your pediatrician says it’s OK.