A mixer’s bowl and attachments may not be calibrated exactly right the first time. Luckily there’s a fix for this. Most mixers have a screw that can be used to raise and lower the attachments, bringing them into closer alignment with the bowl. By doing so, you improve the attachment-bowl relationship and ensure that no ingredients are being left behind. On a tilt-head, you can find the screw just under the head when it’s tilted upwards. On a bowl-lift, it’s on the stem a couple of inches below the head.