What do people mean when they say that conventional butcher's steels don’t actually sharpen your knife. According to the Merriam-Webster on-line dictionary, sharpen means to "make sharp or sharper." It seems to me that is why I use a steel, and the effect that it has.
--Art
OK, this is something that really bugs me too. It all boils down to some subtle semantics.
If you look at the edge of a freshly sharpened knife under a microscope, its cross section will look like the letter V, coming to a fine point. With use, the edge of the V starts to curl over. At that point, if you look under the microscope again, what you will see is something like the tail of the letter J, the little curled part at the bottom, where the sharp point of the V used to be. The curl is the result of use, and abrasion against the cutting surface or other materials.
Depending on which reference you look at, a conventional butcher's steel either removes the curl or straightens it back out. Some people say it "realigns" the curl, whatever that means. After using the steel, the knife is sharper than it was before using the steel, but not as keen as a newley sharpened knife. In any case, the curl eventually breaks off and rather than coming to a point, the edge is blunted. Imagine a V with a flat or rounded bottom.
Repeated use of the knife and application of the steel eventually makes the knife edge so blunt that in order to sharpen it again metal has to be removed from the two faces of the V to bring them back into a point. Then it is necessary to use a grinder, whetstone or other device that actually takes away metal. I use a set of Japanese water stones running from 250 grit to take of the dull edge fast, 1000 grit to sharpen, and then 4000 grit to give a razor sharp mirror finish.
Ceramic steels and ones with diamond dust embedded in their surface actually do remove some metal from the surface, but because they are a fine abrasive, they can't be used easily to re-sharpen a blade that has become too dull. They are better than a conventional steel at keeping an edge, though.
So:
- A conventional butcher's steel does make a knife sharper, so it sharpens!
- It does not deliberately remove metal from the face of the knife so it doesn't sharpen in the same sense that, say, a whetstone does.
- A ceramic or diamond steel does remove metal from the face, but is not efficient for sharpening an already dull knife.
For the record, I am not a fan of the little pull sharpeners with the handle and a notch to pull the knife through . I find that while they are convenient, they don't do nearly as good a job as my whetstones and a bit of elbow grease, and they are more aggressive than is needed for times when only a steel is called for. To me they are a poor middle of the road compromise.
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Due to the volume of questions received, not all can be answered.
© Lost Hobbit Enterprises 2004 onward
Dave Recommends: "How to Cook Everything" iPad App
Being an incurable foodie and techie, I of course have been grabbing cooking apps for my iPad. Some apps are little more than shameless money grabs or self promotions. Others are poorly constructed technically or have little quality content.
The exception, far and away, is Mark Bittman's How to Cook Everything application. This is perhaps the best cooking resource I own. Some readers may recognize Bittman as the author of the books How to Cook Everything
, How to Cook Everything Vegetarian
, Food Matters Cookbook: 500 Recipes for Conscious Eating
and a number of others
. He is also a writer for The New York Times
.
So, what do I like about the app? Well, for starters, the recipes. If it didn't have clear well designed, easy to follow recipes I wouldn't care how well written an app it is. From simple recipes like how to cook Corned Beef to more complex recipes like a classic Bolognese Style Meat Sauce, in How to Cook Everything the instructions are clear, easy, and well explained. Index sections for browsing include not only the expected Soups, Salads (one of Bittman's specialties, apparently), Beans, Meats, etc., but also a complete section on Kitchen Basics, covering equipment, appliances, and ingredients. The section on knives includes basic knife skills, as well as how to sharpen and store them.
But it doesn't stop there.
Being a computer app, How to Cook Everything has features that no paper cookbook can muster. For example, in the Lasagne recipe, one of the ingredients is Béchamel Sauce. The words are underlined, indicating that this is a link to the recipe. Touch the words on your screen, and the recipe for Béchamel shows up. Touch the "Back" button and you go back to the Lasagne recipe.
In the Béchamel Sauce recipe, like many others, there is a choice. In this case, for "30 grams butter or extra virgin olive oil" with circles beside the choices. Butter is the highlighted ingredient, but if you want to use olive oil, just touch the circle beside that ingredient. Two things will happen. First, "extra virgin olive oil" will become highlighted, and if necessary the measure will change. Second, if you are building a shopping list, all you need to do is touch the blue shopping cart above the ingredients and they are added to your list. But here is where it gets good! If you choose olive oil, then that is what gets added to the shopping list. If you choose butter, then the shopping list will show butter. If you are planning a meal, you can go through all of the recipes and add the ingredients from each of the to the grocery list. One enhancement I would like to see, though, relates to when you add ingredients to the shopping list from a recipe that contains another recipe, like above. As it works now, How to Cook Everything simply warns that the ingredients from the second recipe are not added to the grocery list. I would really prefer a pop-up with selection buttons to let me choose to maybe add the ingredients for the Béchamel Sauce, but not the homemade pasta. As it works, I need to click and add the ingredients from each sub-recipe manually.
Staying on shopping lists for a moment, it is worth noting that if the same ingredient is chosen in multiple recipes, then the total amount needed is shown rather than multiple occurrences of the ingredient. Once all of the recipes are added to a grocery list, you can go through and edit the list to remove items you have in your pantry or change quantities.
Once you are cooking the recipe, if there is an instruction like "Cook for three minutes" with a clock icon, touching the amount of time will open a timer dialogue for you. You can have multiple timers running simultaneously. When one of them goes off, a dialogue will pop up allowing you to halt the timer, add time if you think it is necessary, or show the recipe where you started the timer. And it tells you on the timer which step you were at when you set the timer.
As you go along, you can bookmark steps in a recipe so that you know where you are at any time. Bookmarks have a couple of advantages. First and most obvious is that you can turn away to stir a pot or help your grandson play Angry Birds, and return to see where you were at. Also, you can skip between recipes on the fly. Think of bookmarks like the ribbon in your old Joy of Cooking, only you can have as many as you want and they keep themselves sorted out. A button on the bottom of the screen shows Bookmarks and Timers. Touch it and you can instantly go to one of your bookmarks or open the dialogue on one of your times, or you can delete them if you want. With practice, bookmarks and timers can keep you on track in the kitchen.
Those are the main techie bells and whistles, but How to Cook Everything has a lot more to offer. Most if not all recipes have a section on Techniques following the instructions that show basic techniques like "preparing Onions" or "Crushing and Peeling Garlic". Most recipes also contain a tab that gives Variations, for instance how to make Pesto with arugula instead of basil or different options for Chicken Soup. They also have a Related Content tab that may give information on ingredients, or additions to the recipe. And they have a Notes tab where you can make your own notes.
Some other useful features include the ability to show metric ingredients, change text size. or prevent the screen from timing out in mid-preparation. And for the social media types, you can even Tweet or post on Facebook directly from the app!
All in all, How to Cook Everything by Mark Bittman is by far the most well thought out and robust iPad cooking app I have found so far.
Due to the volume of questions received, not all can be answered.
© Lost Hobbit Enterprises 2004 onward
Posted by Dave on Dec 03, 2011 | Permalink | Comments (0)
Technorati Tags: app, Bittman, How to Cook Everything, iPad, iPad app, KitchenSavvy
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