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Wel - for 20L of juice you need a lot of berries and if you don't have any then you have to buy them. Or buy some juice concentrate.
Fermentation is around 8 months or even longer. Ofcourse there are yeasts that can to the job in couple of months.
I put everything in in july / august and around new year I start "tasting it". Till the next summer it should be done. Of course there are exceptions and fermentation in some wines goes can go on for 2 / 3 years.

you can go to the grocery and get the produce they are about to throw out...its a perfect way for them to reduce waste and get your ingredientsImage1.jpg easily!

wow. thats a great idea. I never thought abou that. Just imagine all the products that never reach customers and are thown away - milions of litres of wine!!!!

That's so Interesting to listen!
I do not know how much pleasure to do that job, must be out of my imagination.
Anyways, Thank you so much for sharing conversation.
Best Wishes To You :)