Really? I took me 30 seconds to find one; California Concentrate Company: Varietal Grape Concentrates
Do you have a reliable source for your claim? As you are implying that they are guilty of food fraud?
Thanks for replying.
My answer is no, and don't think so.
Looks like my source (owner of the store) is not as reliable as expected. My mistake. However, he was referring to the Canadian producers of wine kits, which he has contact with (Winexpert, Vineco, RJ Spagnols). He also was mentioning how difficult and frustrating for him is to get any detailed information from the producers about content of the wine kits.
I think it is exaggeration, but have some doubts. In some discussions, I was told that producers protect themselves by adding the word 'style', e.g. Amarone Style, Piesporter Style. It makes sense for me.
Off the topic, I don't know how it is in Europe, but in US and Canada food fraud is not unheard off. E.g. after testing DNA of fish filets, in some samples, even 70% were mislabeled. Always low quality fish sold as a pricey one. Sad! This results are few years old. Hopefully situation has improved.