c glentzer said:If you are going to clean the entire fryer, (inside, outside and underneath) it is my guess that it will take about and hour per fryer. A word of warning. Do not attempt to clean a fryer with a computer chip present unless you plan on doing the whole thing by hand. If you use your pressure washer, or even a hose, water will get into the computer chip. A mistake that will cost you between $500 and $1000.