Kraft evidently stopped making Postum ( http://www.chow.com/grinder/4524 ) last fall and we just opened our last jar. (I had quite a few jars stocked up and may yet find one or two more. I see they are selling on the internet for $25) I've been drinking it regularly for at least 30 years. Yes I like coffee too, but to me Postum was not a coffee substitute, it had its own unique flavor. We've tried Pero and it is OK but not my favorite. Other suggestions would be very welcome.
No ideas for a sub...but I have to admit I don't think I saw Postum in the last 30 years. I remember my mom drinking it once in awhile. Just hearing the name though I was able to recall the taste.
I always found postum a bit sweet.
Right now I'm drinking Barley Tea from Japan called mugicha. Koreans also have a version that I think uses whole barley, not hulled barley called boricha. It has the dark roasted flavors that Postum has, but might need a hit of molasses or honey to emulate the taste and mouthfeel of postum.
I got it from JBox.com, they don't seem to have it in stock right now, but I've seen it on Amazon and you can probably find it at a Japanese or Korean grocer.
I've also had it at a cafe where they make it into a latte, so it stands up well to milk.
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