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Problem with home grown grapes

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Nimrod103
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Problem with home grown grapes

#671128

Postby Nimrod103 » June 26th, 2024, 8:36 pm

I planted a vine about 8 years ago, and for the last three very good summers, it has produced an abundance of sweet white grapes. Variety is Phoenix if I remember rightly. The grapes are small and full of pips, but it makes excellent tasting grape juice. The problem is that this juice gives me diarrhoea. I have tried pasteurizing the juice, on the assumption it was natural yeasts, bacteria or other nasties, but to no avail. Could it be natural fructose or something similar?

Has anybody any idea why this might be, before I cut the vine down? And before anybody suggests making wine, I was into that many years ago, but not now. I could never eradicate that "home brewed wine" metabisulphite flavour tainting everything.

oldapple
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Re: Problem with home grown grapes

#671157

Postby oldapple » June 26th, 2024, 10:55 pm

Just using the words ‘grapes’ and ‘diarrhoea’ in a search suggests that yes, too many sweet white grapes in particular are known to cause ‘the trots’. Now I think of it, grapes used to be what we brought to friends or relatives staying in hospitals. I remember my grandad saying ‘keep your mouth shut and your bowels open’. Seems a shame to cut your vine though if the grapes taste sweet - is it only when you make juice from them that they have this effect on you?

Nimrod103
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Re: Problem with home grown grapes

#671177

Postby Nimrod103 » June 27th, 2024, 7:38 am

oldapple wrote:Just using the words ‘grapes’ and ‘diarrhoea’ in a search suggests that yes, too many sweet white grapes in particular are known to cause ‘the trots’. Now I think of it, grapes used to be what we brought to friends or relatives staying in hospitals. I remember my grandad saying ‘keep your mouth shut and your bowels open’. Seems a shame to cut your vine though if the grapes taste sweet - is it only when you make juice from them that they have this effect on you?


I think I collected about 60 bunches last autumn. Because the grapes are small and full of pips, I tend to eat only a small number. I thought juicing was a better way of processing the volume. I did try to thin the grapes out one year because the bunches are tight, but it was a time consuming job that didn't appear to have much effect.

UncleEbenezer
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Re: Problem with home grown grapes

#671186

Postby UncleEbenezer » June 27th, 2024, 9:01 am

Nimrod103 wrote:Has anybody any idea why this might be, before I cut the vine down? And before anybody suggests making wine, I was into that many years ago, but not now. I could never eradicate that "home brewed wine" metabisulphite flavour tainting everything.

Can't speak to that, but have you tried googling for other drinks recipes? I expect just blending the juice with other fruits won't rid you of the trots, but might it, for instance, be slightly fermented using a process akin to cider?

What about vinegar? I guess that would be more than you could possibly use! But again, a halfway process might make a marinade. Or something.

Just thinking aloud what I'd try if faced with your dilemma. Though I guess you've already tried similar things?

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Re: Problem with home grown grapes

#671243

Postby Maroochydore » June 27th, 2024, 1:53 pm

Nimrod103 wrote: The problem is that this juice gives me diarrhoea.

Are you sure it's the grapes? Diarrhoea can be hereditary - it can run through your jeans :D

I'll get m' coat.

Nimrod103
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Re: Problem with home grown grapes

#671302

Postby Nimrod103 » June 27th, 2024, 7:39 pm

Maroochydore wrote:
Nimrod103 wrote: The problem is that this juice gives me diarrhoea.

Are you sure it's the grapes? Diarrhoea can be hereditary - it can run through your jeans :D

I'll get m' coat.


Noses run in my family.

sweetsour
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Re: Problem with home grown grapes

#674060

Postby sweetsour » July 12th, 2024, 3:54 am

lol it's definitely possible there are other factors at play besides just the grapes. Maybe try keeping a food diary to see if anything else correlates. And definitely don't give up on that vine yet if the grapes taste so good. There could still be a way to enjoy them without issues.


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