Place a fine-mesh strainer lined with cheesecloth over a clean, heatproof container. The goal of using cornstarch is to adsorb these impurities—specifically the free fatty acids and particulate matter—without stripping the oil of its beneficial cooking properties.
DIY Absorbent Oil Cleaner Cornstarch for Pure Cooking Oil
The result is a oil that is visually transparent, free from cloudiness, and possesses a clean aroma. While the oil may appear clean, these degraded compounds are the real culprits behind poor cooking performance.
Preparation and Application Allow the oil to cool slightly after frying until it is warm to the touch, but not hot. Carefully pouring the oil through the prepared strainer is the final step.
DIY Absorbent Oil Cleaner Cornstarch for Purification
The Filtration Process After the waiting period, the oil will have separated into distinct layers: a clear, golden-yellow top layer of purified oil, a thick layer of sediment at the bottom, and the slurry mixture in between. This results in an oily residue that creates off-flavors, excessive foaming, and a dark, viscous consistency.
More About Clean oil with cornstarch
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