It is indeed, I've had loads of Glühwein from both Lidl and Aldi. I got the latest lot from Tesco as Lidl and Aldi do not (yet) do online shopping for groceries, so it's easier to add it to my Tesco order until I decide to actually physically go shopping again.
had it from aldi, lidl, Morrisons, Asda & Tesco. I think the Lidl offering is the tastiest. All very nice though...... and takes me back to ski-ing in Bavaria at Garmisch P.