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Winemaking Talk - Winemaking Forum

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    So2 test

    I recently purchased a SO2 test kit from Amazon, it arrived from Germany, a month ago. With instructions in German and having translated it, it makes NO sense. It arrived with a test tube and some brown chemical (Jodlusung) Iodine Solution. The test tube has two scales one marked SO2 mg/l 0-...
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    Poll: Of the wine you consumed this year, what % did you make?

    Last year I consumed probably 30% home made wine. This year if I take it easy hopefully closer to 75% home made wine. I have about 130litres of finished home made grape wine my adega, at the moment. I am also making orange wine, which is ongoing as the oranges dont all come ripe together, and...
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    Polk berry wine 😶

    Poke Berry was used in the azores as a die for wine making it is flavourless. However Pokeweed apparently is different and can be poisonous or paradoxically a medicine The Paradox of Pokeweed: Poison or Peculiar Cure?
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    Copper Sulphate dosing method

    I suspect the problem was caused by me using too much K-meta on the must effectively stopping the fermentation getting started for a few days which may have resulted in the yeast being stressed. Will do, do you suspect the smell will come back ???
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    Copper Sulphate dosing method

    Seems my math was not correct, I did the above this morning before reading the replies. So how much safety margin do I have ? I work in metric units and assuming 1 US gallon = 4 litres A 0.1ppm copper addition would be approximately .15ml of the 1% solution added per 4litres A 0.1ppm copper...
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    Copper Sulphate dosing method

    OK I took half litre of wine added 1 drop of solution, still had a little egg smell. added a 2nd drop, wife could still smell egg. added 3rd drop passed by the misses. no egg smell anymore. Yeah! I have now added 300 drops to 50 litre barrel, and hey presto cant smell the egg anymore. Dosing...
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    Copper Sulphate dosing method

    I need a little help with some simple math. I have a small barrel with 50litres of wine and a lingering feint rotten egg smell, after it had been splash racked twice and left for a couple of weeks. I read that the addition of copper sulphate up to a maximum of 0.5ppm or 0.5mg/litre can be used...
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    fruit flies over ripe fruit.

    Pressed the wine seems ok. ph 3.95 sg 0.998, tastes ok. More importantly the misses says its ok too. I may have got away with having a few fruit flies in the must . Thanks all for the input. I now have 100 litres of vino novo. I treated it with 1 teaspoon of k-meta, closed the lid with...
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    fruit flies over ripe fruit.

    3 days in and fermentation is bubbling away, I think normally! Must tastes, ok. No flies in sight. I might have gotten lucky. I will be pressing the wine on Saturday all being well, I will report then.
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    fruit flies over ripe fruit.

    Thanks Again for the advice. Sadly i dont think there are any chemical analysis facilities on this island. I guess now my only option is to finish the fermentation and try the wine, in about a weeks time.
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    fruit flies over ripe fruit.

    I didnt take the ph of the must before it started fermenting. The total volume of must is approx 150 litres. Just measured the ph at 2.9 Should I add more k-meta stop and restart the fermentation? Only some of the grapes were over ripe, the ph would indicate the others could have used another...
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    fruit flies over ripe fruit.

    I dosed 20mg 4 teas spoons of k-meta on a approx 100kg of grapes after I crushed, waited overnight then added yeast, today I added some nutrients. The fermentation appears to be going ok, and fruit flies stopped appearing. How fast does acetobacter turn wine to vinegar? Can I expect the wine...
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    fruit flies over ripe fruit.

    Good morning My friend bought a property with vineyards, and left them to ripen, then rang me to say he did not have the time to pick them and make them into wine. 2 weeks ago these grapes would have been all good. I took approx 100kg of grapes letting a lot more go to the ground, covered in...
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    Help Fermentation wont start

    Er Yeah I wondered about it as I dosed, because last year I dosed at 50ppm or 1 teaspoon / 100 litres. 🙄 In Conclusion I added nutrient before the yeast had started and added way to much k-meta to the juice. Both of which could have slowed or even stopped the activation of the yeast. Hopefully...
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    Help Fermentation wont start

    On the packet it said 10 to 30grams/100litres so i gave it 10 grams 2 teaspoons. Maybe it would have been better to give it 5grams Edit I think you may have hit the nail on the head !
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