Watermelon Berliner Weisse Kettle Sour

so heres my watermelon berliner weisse recipe.
its pretty simple.

mash in and out as usually
but after mash out drop kettle temperature to 45 degrees and with a Ph reader check your Ph (should be at 4.8-5.0) if its higher use some 88% Lactic acid (sparingly) to drop your Ph.

once your Ph reading is right
pitch your ROOM TEMPERATURE lactobacillus (5335) cover with cling film and leave it. (mine took about 16 Hours) check it every 4 or so hours and do a Ph reading. Youre looking for somewhere around the 3.3-3.5 mark.

once pH level is right bring to a boil for 15 minutes and continue onwards like a normal brew (add hops, chill, pitch us-05, ferment)

once primary fermentation is finished rack onto frozen watermelon reduction
and let sit for 8-10 days.


watermelon reduction:(best to do this at least 3 day before racking into secondary) cut, and juice all of the flesh of the watermelon, place all of the juiced liquid and even pits of pulp into a pot and simmer until reduced by half then keep temperature above 88 degrees for 15 minutes. then place in a sterilized container and freeze until needed.