I have a few questions about the lettuce knives. To those who do not know what I am talking, a lettuce knife refers to a hard plastic serrated knife specializes to cut lettuce.
For a long time, I simply assumed that a lettuce knife is made out of plastic for safety: sharp enough for lettuce, but gentle enough not to cut our hands.
However, a few week ago, I read a post on CHOWHOUND that a lettuce knife is made out of plastic in order to reduce the lettuce from oxidizing and browning. I then checked online and found out that "prevention of browning" is indeed a major selling point for the plastic serrated knives.
"The clear plastic blade will prevent lettuce from bruising or browning"
While I know carbon steel knives can induce oxidization of vegetables, I have not experienced stainless steel knives doing so.
So my questions to you are:
1) Do you have a plastic lettuce knife?
2) Do you believe that a plastic serrate knife reduces the lettuces from browning more so than a stainless steel knife?
3) If you do NOT believe the anti-browning property, then is there any major reason to own a lettuce knife?