Instruction: Answer the given question by extracting information from the supporting document.

Input:
Question: How often do the slicing blades need to be sharpened?
Document: Mine only lasted for three banana-cutting sessions.3. It does not separate the peel from the fruit. After slicing the banana, the inner portion of the banana needs to be pushed out of the outer portion. Since the inside is soft, this often results in holey banana slices... and of gone unchecked, a rotten smell emminating from the fingernails.4. No provision for stem. The stem needs to be cut off from the banana before it will fit into the slicer.
There are a lot of positive reviews for this, but I suspect that a few of them may not be by people who have actually used this slicer. I refer to several faults that nobody seems to pick up on:1. It's yellow. This makes it more difficult to see the finished product. Banana slices are sometimes left behind, hiding between the blades and blending in like a chameleon.2. It's plastic. Plastic is not a very robust material for slicing bananas.
This product has made my quality of life just sky rocket. Everything makes sense now. But, here's my real question: when can we expect the glow in the dark edition? I am often in the mood for a midnight snack and don't like turning on the lights at one in the morning.10/10 would use again.
although this is a wonderfully useful utensil, the difficulty of operation will leave this marvelous contraption mostly unused and in the kitchen drawer. I, personally, have never used either of my slicers since I always purchase my bananas pre-sliced and individually wrapped. My wife, however, uses hers often as poker chip holders.
There isn't much I can to the quality reviews already posted. If you're tired of slicing your own bananas, get one.
I thought this would be a good alternative to slicing with my knife to have nice uniform cuts. I can do just as well with my knife and a knife is easier to clean.
Your results may vary. I love slicing bananas as much as the next guys, but these didn't revolutionize my life like I hoped. They do make pretty mean banana slices though.
I have one thing to say about you people saying you need a left and right banana slicer, FLIP THE BANANA TO ITS OPPOSITE SIDE!!!! And who needs a banana slicer anyways when you have a perfectly good knife to lace a banana with!?????? BUT you do give me good laughs, but sorry to break it to you but it does take Einstein to flip a banana. Keep up the funny work, just leads idiotic ( if possible, not demanding it. )
I love this thing but it is a pity that you cannot cut the stem. However, I love this because, it is now so easy to cut this super-soft fruit, and you no longer have to put your fingers at risk while slicing. (but men DO NOT use in the nude)
I got this item for my restaurant hoping it would help expedite the slicing of the high volume of bananas we go through. Unfortunately, the first banana we sliced was soft and ended up getting smushed. After wasting seconds extracting the the broken banana pieces from the slicer we tried it again.
Answer: As long as you keep the blades properly oiled, once a week with your banana whetstone should be fine.