Steps
Take yeast out of fridge 3 hours before pitching.
Bring the wort to a boil for 15 minutes
Transfer a portion of the wort to a starter flask.
Pitch WLP001 when temp is at 70°.
Leave remaining wort in kettle.
Adjust PH ~4.2 to limit growth Clostridium butyricum and other potential off-flavor bacteria. Add 2 ml of lactic acid.
Chill the wort down to 95°.
Add 5 oz of Goodbelly Mango drink.
Cover with blankets.
Allow it to sour for 24 hours. No external heating is required.
Target PH: 3.6 - 3.8
After the souring phase, heat to kill the Lactobacillus before adding the WLP001 for 5-15 minutes at 140 degrees.
Chill the Lactobacillus wort down to ~70°F and pitch WL001.
Dissolve 5g salt and 1g coriander.
After 2 weeks a stable gravity should be reached.
Rack or transfer off as normal to bottles or a keg.
Goodbelly: 8oz per 8 gallons = 1oz per gallon
Salt: 0.5oz per 8 gallon = 0.0625oz per gallon
Corriander: 8oz per 5 gallon = 1.6oz per gallon
Lactic acid: Using 1 mL of 88% lactic acid per .1 shift in pH for 5 gallons of wort is a good starting measurement. As an example, say that 5 gallons of wort has a pH of 5.0 just before pitching the Lactobacillus culture. Begin by adding 5 mL (1 US teaspoon) of food grade lactic acid to the wort for a target of ~4.4 pH.