Culture Milk and Form Curd
1-2 hoursAcidify milk with thermophilic culture and citric acid to pH 5.2–5.4 before rennet; cut and cook curd to firm grains.
Field context
This workflow is part of 3 niche fields
Complete guide for mozzarella making — step-by-step workflow, tools, checklist, and expert tips to get started.
Acidify milk with thermophilic culture and citric acid to pH 5.2–5.4 before rennet; cut and cook curd to firm grains.
Submerge curd in 170°F whey or water; stretch and fold until smooth glossy surface forms without tearing.
Shape into balls, chill briefly, and store in 18–22% salt brine at 38–40°F for flavor and preservation.
Bake test pizza or caprese within 24 hours; note melt stretch, browning, and moisture release for batch adjustments.
Monitor milk and curd pH to hit 5.2–5.4 window required for successful mozzarella stretching.
Calculate 18–22% salt brine concentration for storing finished mozzarella balls safely.
Verify salt percentage in brine and any direct curd salting for balanced flavor.
Reference precise water and whey heating temperatures for curd stretching phase.
Critical parameters for pasta filata stretching success.
| Stage | Target | Failure Sign |
|---|---|---|
| Pre-stretch pH | 5.2–5.4 | Won't stretch — too high |
| Stretch water | 170°F | Tears instead of gloss |
| Brine salinity | 18–22% | Slimy or dry surface |
| Storage temp | 38–40°F | Bacterial growth above 45°F |
Curd should squeak when rubbed at correct pH — silent curd needs more acidification time.
Stretching in whey not water adds flavor and maintains temperature better.
170°F stretch water causes third-degree burns — gloves mandatory, keep children away.