Food dehydration and carbs

[gillrogers]

Hi everyone,

Just purchased a ninja foodi and it dehydrates food. Was thinking about doing apple chips then got wondering how the carbs are calculated after it’s dehydrated as a slice would weigh far less after dehydration.

Can anyone helps me rack my brain round this one please?

 

[42istheanswer]

I would think the easiest way to work it out would be to maths your first couple of batches (more than one to check if it's the same weight loss, and if not then do a few to get an average)

Weigh your sliced fresh apples so you can check carbs in them. Work out carbs per g or 100g or whatever suits
Put into foodi on dehydration mode.
Weigh dried apple slices after.
Divide fresh weight by dried weight and that gives you your ratio. Multiply your previously worked out carb amount by ratio and you have your new carb amount per g or 100g or whatever units you used

 

[Lucyr]

If you’re weighing when raw apples then use the carbs in raw apples. If you’re weighing once dehydrated apple slices then use the carbs for dried apple slices

 

[42istheanswer]

So for instance, say you have apples that have 12g carbs per 100g.

If drying reduces weight by 25% then your ratio would be 1&1/3. So your dried apples would have 16g carbs per 100g

 

[Lucyr]

So for instance, say you have apples that have 12g carbs per 100g.

If drying reduces weight by 25% then your ratio would be 1&1/3. So your dried apples would have 16g carbs per 100g

That seems over complicated, just look up dried apples on a supermarket website, carbs in apples vary slightly but you’re not going to be eating many of them to be that wrong anyway

 

[42istheanswer]

That seems over complicated, just look up dried apples on a supermarket website, carbs in apples vary slightly but you’re not going to be eating many of them to be that wrong anyway

It depends on personal preference if it's overcomplicated. The OP may prefer to check in case their dehydrator doesn't dry them out the same amount as commercial dried apples. If they don't want to, then of course they can use an app or website to find an estimate. If they do want to work it out, then hopefully they understand my explanation of working out using ratios

 

[Inka]

I’d just take the carbs of the raw apple, count how many slices it made and then work out the carbs per slice @gillrogers

 

[gillrogers]

That seems over complicated, just look up dried apples on a supermarket website, carbs in apples vary slightly but you’re not going to be eating many of them to be that wrong anyway

I did think about doing that then found added ingredients.

 

[gillrogers]

I’d just take the carbs of the raw apple, count how many slices it made and then work out the carbs per slice @gillrogers

Oh crikey that’s me all over! Too simple and brain falls over! Duh!! Thanks @Inka

 

[gillrogers]

So for instance, say you have apples that have 12g carbs per 100g.

If drying reduces weight by 25% then your ratio would be 1&1/3. So your dried apples would have 16g carbs per 100g

Thanks @42istheanswer ,that could make it more accurate

 

[Lucyr]

I did think about doing that then found added ingredients.

What was added? Ingredients on the Sainsburys one are just apples and preservative (sulphur dioxide)

 

[gillrogers]

Preservatives

 

[Lucyr]

Preservatives

Preservatives won’t change the weight or carbs

 

[Leadinglights]

Looking in my Carbs and Cals, it is a huge difference in carbs between a fresh apple and dried apple slices at 36g carb for 60g compared to an apple at 10g carb for an 80g apple which when you discard the core is about the same weight.

 

[gillrogers]

Looking in my Carbs and Cals, it is a huge difference in carbs between a fresh apple and dried apple slices at 36g carb for 60g compared to an apple at 10g carb for an 80g apple which when you discard the core is about the same weight.

Probably due to concentration of sugars as it’s dried? Interestingly I tried it out and they didn’t have any sort of impact but then I ate them as I intended to to pick on. Jolly nice too lol