How to clean front oil

1. For every cup of leftover frying oil add 1/4 cup of water and 1 tbsp of cornstarch.
2. Add mixture to cooled oil and heat gently over low heat. Do not let it simmer. Stir continuously until the starch mixture begins to solidify. This will take 10 to 12 minutes.
3. remove the oil from the Heat and strain it through a fine-mesh strainer.

you made refrigerate and reuse the oil up to three times