Dehydrating bananas (TJ's Flattened Bananas) - VeggieBoards

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#1 Old 10-14-2009, 12:11 PM
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I am trying to figure how Trader Joe's makes their flattened bananas. They are like fruit roll-ups or fruit leathers. These are very chewy, almost like banana jerky. I thought if you dehydrated a banana you would end up with something like banana chips... something very crunchy. Has anyone tried dehydrating bananas? Do they become crunchy or chewy? I am trying to figure out if I could make my own if I bought a dehydrator.

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#2 Old 10-14-2009, 12:44 PM
 
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Some foods become gummy as they dehydrate and lose moisture, and as they get drier, they will become crunchy (depending on the food, again). So my guess is TJs just doesn't dehydrate them long enough to get to the "crunchy" part. I'd be very careful about eating those - are they sulfured? I wonder how they keep the bacteria at bay....
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#3 Old 10-14-2009, 12:45 PM
 
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I dried some, but didn't do it long enough for some of them to get crispy, some were more chewy. They didn't last long enough to have spoilage be a problem.
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#4 Old 10-14-2009, 12:56 PM
 
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I'm intrigued...

I looooove banana chips, but I think if they were chewy it would be rather ickish.

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#5 Old 10-14-2009, 03:25 PM
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Quote:
Originally Posted by penny79 View Post

Some foods become gummy as they dehydrate and lose moisture, and as they get drier, they will become crunchy (depending on the food, again). So my guess is TJs just doesn't dehydrate them long enough to get to the "crunchy" part. I'd be very careful about eating those - are they sulfured? I wonder how they keep the bacteria at bay....



These are very chewy. I love the texture, and the flavor is very intense and sweet. The name of the product is "Nothing But Banana, Flattened" and banana is the only thing listed as an ingredient. No mention of being sulfured. The expiration date is 10 months away.



Is bacteria a big problem when you dehydrate your own foods?

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#6 Old 10-14-2009, 03:36 PM
 
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Yeah, you have to be very careful with foods that still have moisture but aren't going to be eaten soon/aren't completely dried. That's why fresh is best! I think mold is an issue as well. HOw did those nanners not turn brown, I wonder?
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#7 Old 10-14-2009, 07:38 PM
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Quote:
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HOw did those nanners not turn brown, I wonder?



I wonder about that too.

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#8 Old 10-14-2009, 08:15 PM
 
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Do you taste lemon juice in them? I'd be surprised if it's just bananas.



I made banana dehydrated cookies many, many years ago and within 3 days they had poofs of mold on them.
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#9 Old 10-14-2009, 08:33 PM
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I'm pretty sure the Trader Joe's product is freeze-dried, rather than dehydrated. Different process, different result.
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#10 Old 10-15-2009, 05:34 AM
 
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When I dehydrate bananas they come out chewy, sweet, and delicious. I have an Excalibur dehydrator and bananas are my favorite thing to make. They travel well and last for about a week in a zip lock bag. Mine do turn a little brown, not too much, but a little.



In fact, a quick search on flikr turns up vigilant20's banana chips here. My batches look like that but don't seem to take as long. I probably just slice them thinner.
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#11 Old 10-15-2009, 05:43 AM
 
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When I dehydrated mine, I basted them w/ lemon juice first. I wonder if the purchased ones were vaccume sealed. Would that make a difference in their freshness?
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