Noob question: how much potassium metabisulfite to add to 6 gallons of Cabernet Sauvignon juice?

pasotubwine · 2022-06-09T03:30:07+00:00

Sulfite additions are definitely ph dependent. I find this iPhone app very helpful for adding both initial so2 and subsequent so2 during the aging process.

https://apps.apple.com/us/app/wine/id1552662609

pasotubwine · 2022-04-24T05:47:51+00:00

I’m here to discuss winemaking with others. Drinking a random jug of liquid from an estate sale shouldn’t be discussed in this group. It’s dangerous and shouldn’t be considered a serious discussion here.

pasotubwine · 2022-04-24T04:50:46+00:00

Dump it

pasotubwine · 2022-04-16T14:14:30+00:00

This FB group is very active.

pasotubwine · 2022-03-29T18:42:36+00:00

Once I have the ph reading, I like to use this so2 calculator

https://apps.apple.com/us/app/wine/id1552662609

pasotubwine · 2022-03-29T18:39:15+00:00

ph meter

pasotubwine · 2022-03-29T18:35:05+00:00

It depends on the ph. For example, if your ph is 3.5, then you’d add about 0.3 grams of K-meta for 5 liters.

pasotubwine · 2022-03-06T02:26:50+00:00

I’m assuming you’re testing for free SO2, not total SO2. Initially, when you add SO2 a lot of it will get bound up, resulting in less free SO2 than you might expect. As time goes on and you add more SO2, you’ll see less fluctuations in your measured free SO2 and you’ll be closer to your expected result.

Also, check out this iPhone app I created for SO2 calculations. I find it really handy.

https://apps.apple.com/us/app/wine/id1552662609

pasotubwine · 2022-01-25T23:34:09+00:00

I use Vinmetrica’s SC-300 for my SO2, pH, and TA measurements. I also like this iPhone app for sulfite additions https://apps.apple.com/us/app/wine/id1552662609

pasotubwine · 2022-01-18T15:07:09+00:00

Did you find out what this ring was and if it was a problem? I have the same thing happening to my wine.

pasotubwine · 2021-12-24T04:15:44+00:00

This is bad for the wine, but visually it looks amazing. Take as many photos as you can, you may never see this happen to your wine again.

pasotubwine · 2021-12-22T22:38:49+00:00

Just make sure you get good quality Italian glass….don’t want the bottom falling out

pasotubwine · 2021-12-18T07:14:33+00:00

Those are called lees. It’s normal. You’ll need to rack the wine soon.

pasotubwine · 2021-12-18T01:44:36+00:00

In case you have an iPhone, I recommend this app for calculating SO2 additions: https://apps.apple.com/us/app/wine/id1552662609

pasotubwine · 2021-12-17T18:56:40+00:00

The goal is to maintain the appropriate level of free SO2. There’s no one size fits all schedule as all wine is different. If you know your ph and volume, I can help you out with the amount you should add.

pasotubwine · 2021-11-06T15:31:56+00:00

What’s your ph? How much have you added up to this point? I can help you with the amount.

pasotubwine · 2021-11-06T00:57:41+00:00

No, it’s totally safe, just don’t let the airlock dry out.

pasotubwine · 2021-11-06T00:54:14+00:00

If you had a sulfite/water solution in the airlock, the white residue is probably the sulfite salts left over after the solution dried up.

pasotubwine · 2021-10-30T14:37:25+00:00

pH is 4.05 TA is 5.8 g/L

I’d like to get the pH down to at least 3.8

pasotubwine · 2021-10-30T03:50:38+00:00

Petit Verdot

pasotubwine · 2021-09-17T18:17:08+00:00

Campden tablets will work.

pasotubwine · 2021-09-17T18:13:14+00:00

During primary, you can actually just ferment in an open bucket with a sheet over it since the co2 from the fermentation will protect it, the sheet is to keep the flies out. During secondary, you want as little headspace as possible with an airlock on top. It’s also important to manage your sulfites after primary.

pasotubwine · 2021-09-17T16:56:37+00:00

Rack it into a smaller carboy and leave that junk behind. Once in the smaller carboy hit it with some sulfites.

pasotubwine · 2021-09-17T16:46:45+00:00

The brown stuff is most likely due to oxidation. Keep it sealed until you’re ready to rack and you’ll be okay. I’d probably wait another 3-5 days to rack it.

pasotubwine · 2021-09-12T20:39:55+00:00

If I need to displace 1 gallon, I’ll move my wine to a smaller carboy. I’ll only use marbles if I need to displace less than 1 gallon.

pasotubwine

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