Mash in and out as usual
After mash out drop kettle temperature to 45C
Droped PH with lactic Acid to 4.94
Pitch your ROOM TEMPERATURE lactobacillus cover with cling film - purge airspace with CO2 and leave it. (I have used everything from Pure Lactobacillus to Greek Yogurt)
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 then Thawed Feijoa flesh. (I used 1.5kg for a 20Ltr Batch)
Let sit in secondary for 8-10 days.
Feijoa Flesh: (best to prep the feijoas at least 3 days before racking into secondary) cut, and pull out all the flesh - place into a sterilized container and freeze until needed. - Time permitting freeze and thaw then refreeze (this helps break down the cell membranes further.