Is it ok to microwave veggies without water instead of blanching them in a pot of water?
Whenever I see a recipe which requires me to blanch vegetables for a few minutes, I microwave them instead. It's sometimes faster, I don't have to get a pot dirty, and I don't usually have to dry the vegetables afterwards. The microwave seems to do a very good job of par-cooking any vegetable which is cut up into small, uniform-sized pieces.
However, I've never seen a mainstream cookbook recommend microwaving instead of blanching. Is there a reason for this? Am I losing flavor or texture I would get with blanching? Or is this just one of those bits of propaganda one learns in Chef School, like how garlic presses are evil?
So, is microwaving vegetables to cook them a fine substitute for blanching them, or am I Doing Things Wrong?
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Microwaves do not heat food, they activate the water molecules in the vegetable and cause it to boil. This is why melting things like chocolate take a long time to heat and meat doesn't roast.
My kitchen manager (fine dining restaurant) said that that the only thing a microwave should be used for in a professional kitchen is to heat water.
Microwaving tends to dry out the outside of vegetables, and hurts both texture and flavor. Proper blanching takes about 5 minutes once you have water at a boil, and maintains both the crisp, fresh flavor and full texture. Blanching also tends maintain color better, because the outside of the vegetables heats to the same extent as the inside, and this is doubly true if you use an ice bath to cool vegetables after blanching.
So yes, you are Doing Things Wrong. That said, we all take shortcuts at times, and microwave ovens do work rather well for thawing frozen vegetables. With frozen vegetables you've already lost a lot of the texture, so the microwaving doesn't do much further harm.
Much depends on how you cook your vegetables in the microwave. I like to add butternut squash to pad out Chicken Maykupi (my own completely inconsistent curry recipe, using whatever comes to hand, and whichever spices I fancy on the day) and reduced the amount of chicken needed. If I add it raw, it's never cooked enough, if I add it cooked it falls apart. So I dice about half a squash into 3/4 inch cubes, put it in a bowl with a splash of water (2 tbsp-ish), cover with film and microwave for 4 minutes (850W). It works a treat every time, and takes less time than boiling a pan of water to achieve the same result.
My rules of thumb for microwave cooking of veg are: always cover with film (or loose-fitting lid) cook for half the time, give it a good shake, then finish off. Always cook for less time than you think, then give it another 30-60 seconds if necessary. Don't get obsessed with always using full power. 50% power for 50% longer can give a better result with heftier veg (e.g carrots). Use little water so that it gets absorbed rather than rinsing vitamins etc away.
Wrong?? Not really for it's a shortcut and an easier way of doing things, however think about this the next time if you're planning to blanch or cook your vegetables in the microwave- do you know that the microwave works by radiating heat around the food and as you said it cooks from inside out, and once again radiation- thus this leads to an unhealthy life style.Besides that, if you manage to blanch the vegetables the right way you will enjoy them much more better as they still contain the vitamins and the minerals in them. Oh ya!! Another thing to remember is over cooking of vegetables is rather much more simpler to achieve by cooking in the microwave.
There is also another reason for not microwave your veggie as in here. (Look for hobodave's answer)
You never know that the veggie can catch fire in the microwave as some veggies have high concentrations of metals such as magnesium, iron, and zinc, which might catch fire inside the microwave.
Hope it help you.
The main difference between microwaving and blanching is you can add salt to the water.
Proper blanching takes 1-5 mins depending on what your blanching and how soft you want it.
There is no issues using a microwave you still have a container to clean.
Microwave will save you about 5-10 mins waiting on the water to boil but considering you usually have to cook other things, what I do is first thing out on a pot of water prep/cook other things blanching something I do when I'm done with everything else considering I dont want the veg sitting there to long anyways considering its still cooking after you take it out of the water.
Personally I don't like microwaving veg cause I have never found one to cook the food evenly, compared to blanching.
Microwaving vegetables is completely safe and actually enhances the flavor - providing you dont overcook the product. I am a food technologist and have tested the products
I use the microwave for all my vegetables and have done for 50 years.
Using a saucepan and boiling water washes the goodness out of the vegetable and then you throw the water away and the goodness with it. Cooking in a microwave is as healthy as it is possible to achieve - other than eating the product raw.
I have achieved excellent results using a microwave with no more than a spoonful of water. The only thing you need to watch is mixing the size of the vegetables and the cooking times. If you are microwaving then ensure that the size of the items are about equal. I would not mix beans with say a potato or other larger items.
The mix Cauliflower and Broccoli are perfect. Pumpkin and potatoes the same.
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