Cooking oil recycling takes energy and money, but can be incredibly time-saving and cost-effective.
This article discusses the science behind how to get the most out of your cooking oil and whether you should even bother recycling.1.
Use a Thermometer to Measure the Oil’s Specific Gravity The easiest way to measure the oil’s specific gravity is to take a thermometer.
Simply put, the higher the reading, the more concentrated the oil is.
The lower the reading the more diluted it is.
A simple test is to put your oil into a bowl and heat the oil on the stove.
Once it’s hot, pour the bowl over a piece of paper towel.
You should see a tiny droplet of oil fall out.
If it’s too hot to see it, it’s not the right temperature.2.
Put the Oil on a Flat, Plastic Plate for a Better Temperature Test While a thermocouple or something similar is good for measuring specific gravity, it can also give a general indication of the oil temperature.
For a perfect temperature test, put a piece the oil at room temperature on a flat, plastic plate.
Let the oil cool down for a few minutes and then put the plate back on the heat and heat it again.
The temperature should drop by 10 degrees or so.
If the temperature doesn’t drop, you need to add more oil.
If you’re concerned about the temperature, just add more water and let it cool again.3.
Pour a Small Amount of Oil into the Bowl If you use a thermos for measuring temperature, the oil should sit on the bottom of the pot.
This allows for a much smaller temperature difference between the top and bottom.
If your oil has a lot of fat on it, you can add a small amount of oil to make it appear more saturated.4.
Add more Oil to the Plate Once the oil has cooled down, pour a little more oil onto the plate.
This will add more density to the oil.5.
Add More Oil as the Oil Cools The more oil you add to the plate, the thicker the oil will become.
This helps the oil not stick to the sides of the plate and prevent it from spreading all over the plate while it cools.6.
Pour the Oil Back into the Pan After it’s cooled to room temperature, pour some more oil into the pan.
If there’s too much oil on top, add some water to help keep it from getting stuck to the side of the pan, which can result in a sticky residue.7.
Put It Back Into the Pan to Cool It DownOnce the oil begins to cool down, you want to add a little water to the pan to keep the oil from sticking to the bottom.
This is done to prevent the oil getting stuck on the sides.8.
Wait for the Oil to Heat Up and Cool It downOnce the cooking oil has fully cooled down and is at room temp, it should be ready to be used.
The next step is to slowly heat the cooking pan to a medium heat.
It’s best to put it in the microwave if you can.9.
Remove the Cooking Oil from the Pan Once the pan has reached a medium-high temperature, remove the pan from the heat.
You’ll want to be careful to keep it on the hot side so it doesn’t burn.10.
Add the Oil and Water to the Pan and Stir to MixIf you want a really, really smooth oil, you should use a little bit of cooking oil that’s been extracted from the oil, which will be slightly darker than your oil.
The dark color will help you detect whether it’s a true oil or not.11.
Add Oil and/or Water to Cook the OilAt this point, you’ll want a bowl that is at least a couple of inches wide.
It should have a little extra space so you can pour the oil into it.
It’ll also help to have a spatula handy so you don’t have to do this every time.
You can add more cooking oil to the pot at this point to add color to the mixture.
The more cooking time, the darker the color will become, but the more oil will still be able to penetrate the oil and make it look darker.12.
Add Additional Cooking Oil Once the cooking time is up, pour more cooking water onto the pan and add more boiling water to it to add another layer of oil.
It will take a little longer, but eventually the mixture will be thick enough to hold its shape.13.
Pour in the Oil from Another Pan When the cooking is done, you’re done!
The oil will be more solid than it was when you first poured it into the pot, so you’re going to want to remove it from the pan a bit so you won’t have any residue on it.14.
Serve with your favorite condiments: a salad or a pasta dish.
If that’s not