Just bought the wife a nice set of Kitchen knives for Christmas, and
the advise to hand wash them only, I suppose because the granular
might dull them.
Truth or wives tale??????
You should hand-wash them, but mostly because a thirty-minute immersion in hot
water, followed by the heat of the drying cycle in the dishwasher, isn't going
to do the (presumably) wooden handles any good. The detergent won't harm the
blades, but they may get nicked if they bang into other utensils.
Doug Miller (alphageek at milmac dot com)
I believe it's because dishwasher detergent is more caustic than the type
you'd use for handwashing. In the long run, there really isn't enough
difference to cause you to worry. It's likely you'll be old and grey (or
greyer) before you'd consider them damaged.
Dishwasher detergents will eat the edges of good high-carbon steel
leaving, over time, small "nicks" which will require a goodly amount of
either machine grinding or elbow grease to put back the edge.
About the only good advice my M-I-L ever gave me.
I've heard the same thing, not sure whether it's true or not.
I do know, however, that when I put my knives in the dishwasher (I have
polymer handles on mine for this reason) they do seem to get rust spots
and also lose their edge more frequently.... I do put them on the
bottom rack, and I probably wash the ones I use most often 3 or more
times a week. I've had them for 18 months.... and I run them over a
6000 grit whetstone when the seem dull....about every 6 months.
I also don't use the sharpening steel, ever. If you use a steel use
it very very lightly, never apply force.
On 21 Dec 2006 06:21:51 -0800, brian_j email@example.com wrote:
If the handles are wood they will be destroyed over time - otherwise
no real problem altho I do feel that the ones i put in dishwasher got
duller faster - no real evidence - so i stopped putting them in.
Besides it only takes a few seconds to wipe off and put back in drawer
where you can find it! As opposed to looking in drawer, then
dishwasher, then countertops etc. Just an efficiency consideration.
Assuming they have wood handles, the diswasher will dull and eventually
remove the finish. Being too lazy to hand wash knives, I usually dip the
handles in oil about once a year or so to renew the finish. Usually use BLO
or Danish and one or two dippings + wipes usually renews the finish pretty
well. If one gets scuffed a bit a light burnish with fine steel wool,
before oiling, will clean things up.
Putting them in the dishwasher will void the warranty on almost all
good knives. Speaking from personal experience, these knife companies
can tell instantly by looking at them that they have been in a
dishwasher. Their tech guys say that it damages the finish on the
steel in addition to ruining the plastic handles.
This is really a wive's tale because my wife told me. When we put the
steak knives in the DW, the silver-plate other utenliles get tarnished
and generally show a chemical reaction to the presence of the knives.
So we don't do it any more. Works for me. She doesn't tell me how to
cut wood and I don't tell her how to load the DW.
brian_j firstname.lastname@example.org wrote:
> Just bought the wife a nice set of Kitchen knives for Christmas, and
> had heard
> the advise to hand wash them only, I suppose because the granular
> dishwasher detergent
> might dull them.
> Truth or wives tale??????
Good knives should be hand washed, dried, and kept in a knife rack
rather than in a drawer.
A knife rack insures that the sharp edges do not come in contact with
If you don't have a rack, you now have a reason to build one.
As far as a dishwasher is concerned, ask yourself a question.
Would you put your drill bits, plane irons, files, or any other of
your cutting tools in a dishwasher?
If the answer is "no", then why would you abuse your kitchen knives?
Mark Jerde wrote:
> (IIRC there was a rec.crafts.metalworking thread about using a
> for a parts washer.)
Once worked for a company that used a standard home dishwasher to wash
printed circuit boards after etching.
Don't remember what, if any, detergent was used.
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