Question

Which of the following does NOT refer to sparging of oil?

(a) Oil is kept in vacuum and heated to smoke point. Water is introduced through the bottom

(b) Water gets converted to steam

(c) The steam bubbles through the oil and separates water-insoluble impurities

(d) None of the mentioned

The question was posed to me during a job interview.

My question is taken from Oil Processing topic in section Fruits, Vegetables and Milk Processing, Meat Processing and Oil Processing of Food Engineering

Answer 1

Right answer is (c) The steam bubbles through the oil and separates water-insoluble impurities

Best explanation: In Sparging of Oil, Oil is kept in vacuum and heated to smoke point. Water is introduced through the bottom. The water gets converted to steam. The steam bubbles through the oil and separates water-soluble impurities.