It is recommended for 6 gallons. I use it because I make wine from juice that comes in 6 gallon buckets. You could give it a try or buy 2 packets and after pouring in the first one pour the second one in a measuring cup and pour 2 gallons worth.

Yes.

because of the density 20 grams of liquid of that kind would equal 20 ml

It should work in the situations described and I think that Opti-Malo Plus could only help your chance of a successful MLF. The main thing ti watch is your free SO2 level 15 ppm max or you may not see any MLF at all.

We have never used W15. However the activity of the liquid malo is excellent. Using the optimalo will help to ensure the best possible results. We have gotten really good results with Malbec..

Hello - I wish i can help but i have never used W15. I use RC 212 for my Pinot. But when i use Wyeast i always uses Opti-Malo +.

it should work at co-inoculation yes. Whether to use opti malo is part personal preference and part dependent on nutrition analysis. Usually the yeast activity is enough to provide all that’s needed. I’ve personally stopped inoculating with either yeast or malo. No nutrient adds if grapes are healthy. Native ferments have been excellent and easy and delicious.

Yes you can use it it ferments and higher alcohol wines should match with W15 I would use opti malo. I have a low acid you should use viniflora35 in my opinion

Thanks for the reply.

It should work just fine i would kerp up with and use all yeast and mlf nutrients

Hi Peter yes we always recommend shipping liquid cultures on ice. Though we can't guarantee it'll arrive cold it's helpful to keep it cold for as long as possible in shipping.

No I am using right away.

i keep this in the refrigerator until I am ready to use this. It is typically with 3 months of receiving the product.

Keep refrigerated See best by date

I have stored it in the refrigerator for 2-3 months and had no problem

I’ve only stored for future use once. As long as it stays refrigerated. I did this with the malolactic last year as I made my whites a little later than normal. It was fine worked well. As soon as I receive any orders of yeast from More Wine I immediately date them write which type of wine I will be using with that certain yeast and then refrigerate. I usually by multiple kinds of yeast prior to buying my wine grapes or juice but I usually have an idea of what I want. Sometimes my local wine supplier does not get certain varieties that I’m looking for. Also I enjoy More Wine’s yeast pairing guide!

I try not to buy too many at a time because the bacteria does have an expiration date. But I have kept this in the fridge for More than 3 months and it still was active enough to start MF. Also exceeded the expiration date. Evidently it is packaged well. I did not have the same success with White Labs bacteria. Rich

Manufacturer's website says to keep the pouch refrigerated and to use it within 6 monthz of purchase