Pug Mill at Barney Brickyard, Norfolk
A pug mill is being used here to mix clay and brick earth prior to moulding into bricks. The movement of the horse around the vat is harnessed and used as a power source. This also forces air out of the mixture. Trapped air can cause the finished product to expand and fracture in the kiln. Find out more about brick making in our Teachers' Kit - Brick Making.
