Questions tagged [sharpening]

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15
votes
5answers
19k views

Can I sharpen a knife with sandpaper?

So I was thinking, instead of purchasing a dedicated (and expensive) whetstone with limited coarse(ness?) range, why not use patches of sandpaper in increasing grit numbers (getting finer), stretched ...
37
votes
8answers
8k views

How to test that a knife is sharp enough?

As per the question - how to I test that a knife is sharp enough? And/or, how do you know when a knife needs sharpening? Edit: Yesterday I attempted (I feel quite successfully) to hone my knives for ...
15
votes
7answers
13k views

How do you sharpen a serrated knife?

I have some quality serrated knives but over time they get dull. How do I sharpen them?
8
votes
5answers
36k views

How often should knives be sharpened?

I've a Wusthof classic ikon knife which i've had for about 5 months, it seems to be losing it's edge. It's regularly honed with a grooved honing rod, but I'm unsure if I'm doing it correctly. I've ...
12
votes
3answers
3k views

How can I sharpen my peeler?

Is it possible to sharpen a peeler? And if it is, how should I do it? Are there any things to look out for? (Such as ending up with concave blades.) This is the sort of peeler I'm talking about:
13
votes
3answers
964 views

How can I learn to sharpen my Japanese knives properly?

I have a couple of nice Japanese kitchen knives, and a whetstone in two grades. I can sharpen them reasonably well using the stone, but does anyone have any good tips for improving my sharpening ...
16
votes
7answers
4k views

How to find a competent knife sharpener

I have a santoku that I will be wanting to get professionally sharpened in the next few months. This is the first knife I've owned that was reasonably expensive so I want to make sure I take care of ...
34
votes
2answers
12k views

Do magnets dull knives?

A friend of mine bought some new, very sharp knives. He has a magnetic strip that he uses to store knives, but he does not put these new knives there because he says magnets dull knives. Is that true?...
6
votes
1answer
892 views

Why does oil reduce the effectiveness of Japanese waterstones?

I've read in several places that oil should not be used on Japanese waterstones, but none of the sources explain the reasoning behind this. What, if any, damage would using oil cause and would it be ...
7
votes
1answer
26k views

Does a sharpening steel ever need to be replaced? [duplicate]

Possible Duplicate: Do honing steels wear out? I've been using my sharpening steel for several years. The tiny little ridges that run along its length seem to be somewhat worn, although they're ...
6
votes
2answers
2k views

How to convert knife edge angle “ratios” into degrees?

European-style Japanese knives seem to be described (also here and here, and in my most recent post) in terms of "ratios" that always add up to 100. It's not exactly clear what this means in terms of ...
2
votes
2answers
456 views

How do I identify a bad sharpener?

I have a cheap plastic board with an in-built pull-through sharpener, metal and ceramic. I have have trouble believing that this can be any decent, but I have tried it on a bad knife. The knife is now ...
1
vote
2answers
528 views

How well do counter top knife sharpeners sharpen knives?

Are counter top knife sharpeners like the IQ knife sharpener good for sharpening knives (or cheap knives)? I have used the IQ sharpener and it is still hard to cut through big onions. I would like to ...
0
votes
2answers
166 views

How to sharpen knife with chunk missing?

Is it better to grind off the whole blade or should I find someone to add metal and then sharpen it again?