2

votes

Can fresh squeezed juice go bad in 12 hours?

Answered on September 12, 2014
Created April 25, 2012 at 1:02 AM

Well, not technically squeezed: I vitamixed (super blendered):

2 whole valen. oranges (just removed the orange outer part, but whole oranges went in the blender). 2 frozen banana, 3oz frozen blueberries. I added ice & water and blended into a nice juice for breakfast.

I really enjoyed it at breakfast. It tasted great!

I poured the rest into a plastic cup (tight lid) and put in fridge.

When I had some 8 hours later, it tasted kind of sour.

I had the rest 12 hours later and tasted even worse. I added another frozen banana, and blended in my little blender - magic bullet blender.

It still tasted 'off'.

So, what changed? (My taste buds or the juice)? For both breakfast & dinner I had baby back ribs which were cooked in V8 & molasses (not that much).

Is commercial juice & smoothies more stable because they add something too it? (like vit. c?) But heck: the fuit has vit. c.!!

Oh, wait: it wasn't until I typed this whole thing that I remember one potentially important thing:

I went out to lunch and had 13oz of commercial orange juice (not from concentrate).

Is it possible the 4X sweetness of the commercial OJ made my home made less sweet juice taste, well, less sweet?

Thanks for any thoughts or comments, Mike

Ce7e28769d92d5de5533e775b1de966e

on April 26, 2012
at 02:47 PM

@Mike - what about freezing your other portions? Yank out of the freezer and let start to thaw, bashing around a bit to break it up, then you kind of have a smoothie and everything stays fresh. Re: comments, it's nice to keep everything together on one thread so it's in one spot rather than spread all over the place. One response = a solid convo instead of scattered... if that makes sense?

7fc82eebafd44badc73c520f44660150

(3275)

on April 26, 2012
at 12:41 AM

Just curious: why do people post great answers as comments instead of as answers? (still trying to get a sense of how this site works)

7fc82eebafd44badc73c520f44660150

(3275)

on April 26, 2012
at 12:39 AM

@jesuisjuba Thanks for a great answer! I guess I won't use oranges in my vitamixed smoothie because I usually blend up 2 to 3 servings at a time (it's just more convenient - one cleanup, etc.). When I use banana, blueberries, strawberries, spinach, the 3rd serving is as good as the first!

Ce7e28769d92d5de5533e775b1de966e

on April 26, 2012
at 12:36 AM

Nice one @RichfrmTx! We all cool? Box juice = bad. Fresh juice = good!

7fc82eebafd44badc73c520f44660150

(3275)

on April 25, 2012
at 11:13 AM

Omg rich: great link. Makes me want to just vitamix a whole orange when I'm ready to enjoy it.

6714718e2245e5190017d643a7614157

on April 25, 2012
at 03:32 AM

@ Mike, here some info for you: http://consumerist.com/2011/07/oj-flavor-packs.html

A4216f1b1e1f5ab3815bd91700905081

(1646)

on April 25, 2012
at 02:43 AM

That also raises a question: does FCOJ get bitter more quickly than non-FCOJ because of limonate conversion due to the boost in the non-concentrate stuff?

A4216f1b1e1f5ab3815bd91700905081

(1646)

on April 25, 2012
at 02:42 AM

From the little bit of chemistry I was able to understand in some LARL and limonate/limonin interaction studies, it's probably a combination of "stuff" done to the juice. Commercial juice is generally pasteurized and then evaporated (concentrate) or stripped of oxygen and stored ("not from concentrate"). A combination of heat during pasteurization and "flavor boosts" added to NFC OJ are the probable reasons; there is no requirement to disclose contents of the boost, so we don't know what they add to counter limonin production.

7fc82eebafd44badc73c520f44660150

(3275)

on April 25, 2012
at 02:12 AM

I didn't read the link yet but why doesn't commercial oj go bitter so quick?

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3 Answers

best answer

4
Ce7e28769d92d5de5533e775b1de966e

on April 25, 2012
at 02:02 AM

This is a topic I got into a few weeks ago, it's pretty cool. I gotta start with a comparison so the differences are pointed out. And well, I find it super neat:

Juice from lemons and limes can sit for about 4 hours before the flavour begins to fade but will not become bitter. This is due to oxidized terpenes.

Now, fresh juice from an orange is delicious for only about an hour and then instead of mellowing, like the lemons/limes, it becomes bitter. Why? well, because it has limonin in it. That compound doesn???t form until fresh orange juice is squeezed and forms after it has sat for a while. When an orange is juiced, the juice sacks are broken, and the acidic juice and an enzyme promote the conversion of LARL into limonin.

Here - this is the piece I wrote about it with some really great sources to check out for general nerding out.

A4216f1b1e1f5ab3815bd91700905081

(1646)

on April 25, 2012
at 02:43 AM

That also raises a question: does FCOJ get bitter more quickly than non-FCOJ because of limonate conversion due to the boost in the non-concentrate stuff?

6714718e2245e5190017d643a7614157

on April 25, 2012
at 03:32 AM

@ Mike, here some info for you: http://consumerist.com/2011/07/oj-flavor-packs.html

7fc82eebafd44badc73c520f44660150

(3275)

on April 25, 2012
at 02:12 AM

I didn't read the link yet but why doesn't commercial oj go bitter so quick?

7fc82eebafd44badc73c520f44660150

(3275)

on April 25, 2012
at 11:13 AM

Omg rich: great link. Makes me want to just vitamix a whole orange when I'm ready to enjoy it.

Ce7e28769d92d5de5533e775b1de966e

on April 26, 2012
at 12:36 AM

Nice one @RichfrmTx! We all cool? Box juice = bad. Fresh juice = good!

A4216f1b1e1f5ab3815bd91700905081

(1646)

on April 25, 2012
at 02:42 AM

From the little bit of chemistry I was able to understand in some LARL and limonate/limonin interaction studies, it's probably a combination of "stuff" done to the juice. Commercial juice is generally pasteurized and then evaporated (concentrate) or stripped of oxygen and stored ("not from concentrate"). A combination of heat during pasteurization and "flavor boosts" added to NFC OJ are the probable reasons; there is no requirement to disclose contents of the boost, so we don't know what they add to counter limonin production.

7fc82eebafd44badc73c520f44660150

(3275)

on April 26, 2012
at 12:39 AM

@jesuisjuba Thanks for a great answer! I guess I won't use oranges in my vitamixed smoothie because I usually blend up 2 to 3 servings at a time (it's just more convenient - one cleanup, etc.). When I use banana, blueberries, strawberries, spinach, the 3rd serving is as good as the first!

Ce7e28769d92d5de5533e775b1de966e

on April 26, 2012
at 02:47 PM

@Mike - what about freezing your other portions? Yank out of the freezer and let start to thaw, bashing around a bit to break it up, then you kind of have a smoothie and everything stays fresh. Re: comments, it's nice to keep everything together on one thread so it's in one spot rather than spread all over the place. One response = a solid convo instead of scattered... if that makes sense?

7fc82eebafd44badc73c520f44660150

(3275)

on April 26, 2012
at 12:41 AM

Just curious: why do people post great answers as comments instead of as answers? (still trying to get a sense of how this site works)

1
2c657a0aca33e505e735477ddd68f4f2

on April 25, 2012
at 02:01 AM

I'm going to guess that there's some oxidation going on, especially since you blended air into the juices.

0
96ed0f67a408aafbc459a36d73f4c646

on October 06, 2013
at 10:50 AM

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