Cooking With Dehydrated Vegetables

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Dehydrated vegetables

These days I dry as many vegetables as I freeze or bottle, and then use up every shrivelled squash or tomato by winter’s end. Cooking with dehydrated vegetables is an everyday thing at my house, with quite a bit of variation from year to year, depending on what I manage to put by. In a typical summer, I will dry several quarts of tomatoes and summer squash, two pints of peppers, and smaller amounts of celery, kale, mushrooms, leeks, herbs and other random tidbits.

Then what? How to cook with dehydrated vegetables is the first question asked by gardening friends, and it deserves a thoughtful response. Most of us are not accustomed to cooking with dehydrated vegetables, which is easy and fun.

“Soup
Lentil soup gets extra layers of flavour from dried tomatoes, squash, and peppers

Using Dried Vegetables in Hot Dishes

Sunday night is generally soup night at my house, which a great way to cook dehydrated vegetables. Most vegetables fully rehydrate in 30 minutes, and you can make a fine soup with dried vegetables including tomatoes, peppers, green beans, and summer squash. Brown rice, lentils, and farro also need 40 minutes of cooking time, so they make excellent additions to soups that include dehydrated vegetables.

For fast-cooking pasta dishes, you can speed rehydration by crumbling or cutting dried vegetables into smaller pieces, which naturally absorb water faster. I use scissors or kitchen shears to cut dried summer squash into thin strips, which can be tossed into hot pasta when it’s almost cooked. Drain off most of the water, let the pasta and vegetables sit for ten minutes, and you have the start of warm pasta salad with summer vegetables.

“Orzo
Dehydrated vegetables that are cut and broken into small pieces plump up quickly in an orzo salad

Using Dried Vegetables in Dressings and Condiments

Many people want to make dressings and condiments with dried tomatoes, especially little jars of dried tomatoes with olive oil, garlic and herbs. To do this, start by placing some dried tomato slices in a heat proof bowl, and cover them with boiling water for one minute before draining off the water. In addition to kick-starting the rehydration process, the boiling water disinfects the dried tomatoes, which go into the dehydrator straight from the garden, and thus could harbor pathogens.

You can now pack the tomatoes into clean jars, cutting them into smaller pieces if necessary. Add a few cloves of sliced garlic and a bit of salt, and cover with good quality olive oil. Keep at room temperature for a couple of days, and then store in the refrigerator for up to two weeks.

Simple vinaigrette salad dressings are easily revved up with crushed dried tomatoes, which rehydrate in about 30 minutes in an oil-vinegar mixture. If you prefer a creamy dressing, add yoghurt or mayo, and puree the dressing with an immersion blender.

“Tomato
Dried tomato powder is convenient for adding to soups, sauces, and dressings

Making Vegetable Powders

Any dried vegetable can be made into a vegetable powder, which can then be added to soups, sauces, baked goods, or smoothies to add flavour and nutrition. Vegetable powders are best made in small batches, because they quickly absorb humidity and become clumpy. Pulverisation also changes the nutrient profile of the dried vegetables, with some vitamin losses due to increased light exposure.

Vegetables must be crisp-dry before they will pulverise into a powder, so it’s best to cut the dried vegetables into smaller pieces and re-dry them in a food dehydrator or warm oven until they break like crackers. Pulverise them in a spice grinder or coffee mill, and immediately store the vegetable powder in an airtight container.

On a cold day when your feet won’t get warm, heat a cup of milk (or unsweetened plant milk) to steaming, stir in a tablespoon of pulverised tomato or other vegetable powder, and wait ten minutes. The vegetable bits will plump up and thicken the milk, making instant soup for which you did all the processing, with no packaging to go in the trash. This should make you feel warm all over.

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Comments

 
"Thanks so much for this information. I've been considering getting a dehydrator, due to limited storage. After reading this information, I definitely know it would be worth it."
Raani on Saturday 18 December 2021

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