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  1. What if potato is like a grease soaking rug? Potatoes have starch as a sugar, and water. Potato in hot oil sizzles because it pushes water out and evaporate then in exchange oil seeps though the potato and causes millard effect from the inside which in turn burns it if left un attended. As such most degraded oil remains inside the potato chip leaving behind a relatively clean oil after several batches of cooking potato chips.

  2. Please try these two variations to the experiment to find out if the oil's usefulness can be extended.
    1: after cooking the chicken, cook chips to see if the oil's fatness neutralises and indicator turns bluer again.
    2: try cooking half chicken and half potatoes together (basically mimicking a stew), to see if the indicator's color change gradient is slowed by half or more when compared to chicken cooking oil?
    Which begs the question, what properties do potatoes have that cause this amazing effect?

  3. I work at qdoba. We Cook at least 2000 chips a day. We change the oil every 2 weeks. 2000 x 14 = 28,000. So maybe about 28,000 chips per 2 weeks in a 7 gallon fryer. We have to make 14 tall 5 gallon buckets daily each is 2 batches, so We are making 71 batches a day 994 every 2 weeks

  4. “Frying oil”. What is that?! I googled and even there’s no standard! Why so vague? Even for a “Hollywood” faux experiment, this is pretty lame. Every type of oil has a different smoke rate which in this experiment absolutely plays a role. Especially blended oils which is what “frying oil” sounds like assuming only that it would have to be made up of oils that could comfortably sustain 180°C for an extended period of time. You might say so long as the oil is the control, and the variables of chicken and potatoes are compared, that the oil type doesn’t matter. I would disagree. And was the chicken battered? Again, something to take into account. Because chicken and fries cook at different rates; chicken being more dense would take longer. Add bones and it would take even longer. In a professional fryer using sunflower oil at a consistent 180°C will cook 1kg of frozen fries to golden brown in 4mins. We never did chicken because it took too long for the setup we had. This experiment is more about the oil than the two variables presented.

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