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NevCheers for the replies, guys. I meant to update this yesterday.
I emailed the head brewer at FourPeaks with a couple of questions and he was extremely helpful and quite happy if I shared his response on the forum, so here it is:
John,
Weve done several different applications of dates over the years, but the one that would be best for a homebrewer would be to pit the dates and discard them (very astringent), then add the dates to boiling water and breakdown the sugars into solution. Once youre satisfied with the sugar solution let it cool a bit and run it through some cheese cloth to strain it, and wring out the pulp for any remaining syrup. If you think theres more extract in the pulp you could certainly re-do the process with what remains. We found it was better to then boil just the syrup to evaporate away the water (this will change the color, though). You can then treat it at a simple extract and add it to your boiling wort.
As to percentages, Id say youd have to just experiment with the extract that you make. We used medjool dates (very prevalent around here) which are quite large and have a very high sugar content but any date will work.
The dates dont necessarily impart a huge flavor impact since theyre mostly fructose and will be consumed entirely by the yeast. But the cooking process can create some unique caramelized flavors which will carry over.
Good Luck!
(Name removed)
Four Peaks Brewing Co.
Tempe, Arizona
And then this one-
Good looking recipe. Interested in your water. Lots of potassium in dates, could be a plus though, if sulfites are present. Also, try to control your phenols with that yeast. (Wy 1762) We notice a slight, natural phenolic character with the caramelized date syrup, a Belgian strain can sometimes add to it.
And, sure, share if you like.
I am going to make the extract as he has outlined and add at the last 15 minutes of the boil. See how we go! Next weekend for this one.
Cheers.
EDIT- @ Ged- Where can I get pectinase enzyme, mate?
I would like to try that when you are finished :icon_chickcheers: