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Dehydrating Kale and them snowpeas

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Ian Clark BPL Member
PostedAug 8, 2013 at 11:44 am

So I harvest a heap of Kale every year. The last couple years I have been air drying it. I have a needle and thread set up by my kitchen window where I pierce the stem and just let the leaf hang and dry. I might do about 2 feet of threaded leaves at a time. Once the leaf has dried, I just crumble it up and throw it in a zip lock bag in the fridge for later trail use. This is kind of how they use to hang shade tobacco back when I was a kid. That was a long time ago when white kids use to work agriculture picking beans, corn, and tobacco.

My question is…..since the kale was not blanched before drying, is the nutritional value pretty much destroyed by enzimatic activity during the drying process? Can blanched kale be dehydrated and is this what I really should be doing?

I also harvest a heap of snowpeas every year. I've tried dehydrating snowpeas and rehydrating on the trail. It has always been a bit too long a rehydration process for my liking. I wonder if any one has stumbled across any good leather recipes for snowpeas? I have no plans to just munch on the leather, but maybe including it with a meal or two for fast re-hydration. Maybe spiced for an asian style dish, although my reading suggests snowpeas originated in the mediteranian area.

For you lazy high elevation gardners, you can't go wrong with snowpeas or kale.

PostedAug 8, 2013 at 1:40 pm

Kale dries fast and for example, kale chips are huge now, and you don't blanch it. I'd blanch peas though – and pea pods. A puree of blanched ones would make a leather – be good in sauces!

Ian Clark BPL Member
PostedAug 9, 2013 at 2:27 pm

So is it suggested that since Kale dries fast, it doesn't require blancheing. However, something that dries slow requires blanching to prevent the alleged enzymatic whatchama call it detioration thing?

Just to be a contrarian, I can dehydrate snow peas in a dehydrator just as fast as I air dry my kale. Now I don't really want to blanche kale, I just want to know what not blanching does to the nutritional value. What are the origins of this whole blancheing thing for dried foods in addition to canned foods. Or is blancheing just a way that allows dried foods to rehydrate faster. I need to find a study on this. I'm sure some poor grad student did their thesis on the science of drying beans.

I talked to my local gardening expert and OB instructor and she says she only blanches what she cans. She doesn't blanche any of her dried veges and I would bet her solar dehydrator isn't all that fast now that the monsoons have set in to the central CO rockies.

Any suggestions on recommended readings for everything you never really needed to know about drying food? I thought there was that BPL Canadian poster a couple years back who was working on a book or two on food drying. I'll have to look her up.

PostedAug 9, 2013 at 9:52 pm

It depends on the vegetable really. I find that green beans and peas dry better and taste a heck of a lot better after – and yes, rehydrate better. As well, with any preservation method, blanching helps retain things like color (freezing or drying). Blanching is quick and doesn't damage the nutritional value much.
Although not always is this the case – I freeze raw corn kernels (I shave them off the cob, quick freeze on a tray), but with drying, I blanch.

PS: as well, blanching par-cooks the item. If you dry raw beans, you get dried raw beans that are often not as shelf stable.

PS2: Kale is like spinach….if you blanch it, it cooks quickly and gets soggy/limp. I prefer to dry greens raw. Once crispy I can crumble them up, and sprinkle on food before rehydrating.

Ian Clark BPL Member
PostedAug 10, 2013 at 9:51 am

Thank you for enduring my questions.

I think I will blanche a batch of snowpeas and do a little leather test with the oversized ones that I missed on previous pickings.

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