40x40 Plate & Frame Filters aka Sheet Filters
Depth filtration (sometimes referred to as “bulk filtration”) does the heavy lifting. This is done by running product through a series of filter media, usually with a Plate and Frame Filter (sometimes called a “Sheet Filter”) or a Lenticular Filter. When depth filtering, product is typically run through the filter multiple times, decreasing the micron rating (porosity) of the filter media with each pass.
A plate and frame filter utilizes a series of fibrous filter sheets sandwiched between plates (typically a food-grade plastic or stainless-steel) that are channeled to allow product to flow through the filter sheets from the inlet side of the plate to the outlet. The plates and sheets are pressed tightly together to minimize dripping / product loss as the filter sheets fill with product. Filter sheets are relatively inexpensive, so there’s little financial risk in experimenting with different filter grades. The drawback of a plate filter is that product is exposed oxygen and outside “contaminants” while it is being filtered and, as the filter sheets fill up, product is lost due to dripping.
Plate and Frame / Sheet Filters is one of the most common filtrations process for Olive Oil and Wine.
