The Cheese Press with Spring is a vital piece of equipment when making semi-hard and hard cheese. Pressing is one of the important steps in making hard cheese and acts to expel the whey and to form the curds into a solid mass. The cheese basket you use acts as a mould and creates the shape of the cheese you are making.
In order to press the cheese, you need to apply evenly distributed pressure, or weight, to the cheese in the mould. To do this you need a follower that will fit correctly on top of the cheese, inside the basket or hoop (available as part of the Hard Cheese kit). You then need to apply the correct amount of weight to the cheese. My recipes all indicate how much weight should be applied. See this cheese press with spring in this video on how I estimate the pressure applied when using this press.
The base is HDPE, which is a food-grade plastic and is the industry choice. The threaded rod, nuts, and washers, etc. are 316 Stainless Steel.