Calculate exact refrigerator curing days, Cure #1 grams, salt percentage, and sugar additions for whole pork belly slabs based on slab thickness and equilibrium diffusion physics.

Master Rule: Refrigerator curing penetration is governed by slab thickness, not total weight. Allow 2 full days per centimeter of belly thickness plus 2 buffer days in a sealed vacuum bag at 36F to 38F for 100% cure equilibrium.

Configure Parameters

2500 g
4.0 cm
2.2 %
1.2 %

Calculated Targets

Refrigerator Cure Duration
10 Days
Flip bag daily at 36F - 38F (2.2C - 3.3C)
Exact Cure #1
4.80 g
Pure Sea Salt Needed
50.50 g
Sugar / Sweetener
30.00 g
Pellicle Rest Time
24 Hours
For a 4.0cm thick slab, equilibrium takes (4.0 x 2) + 2 = 10 days. 120 PPM sodium nitrite requires 4.80g Cure #1 for a 2500g slab, leaving 50.50g pure salt to reach your 2.2% salt target.

Pork Belly Slab Curing Time and Salt Diffusion Benchmarks

Slab Thickness (cm) Thickness (Inches) Minimum EQ Cure Days Pellicle Dry Time Optimal Smoking Hardwood
2.5 cm 1.0 inch 7 Days 12 - 18 Hours Applewood, Cherry, or Pecan
3.5 cm 1.4 inches 9 Days 18 - 24 Hours Hickory, Sugar Maple, or Applewood
4.5 cm 1.8 inches 11 Days 24 Hours Hickory, White Oak, or Sugar Maple
5.5 cm 2.2 inches 13 Days 24 - 30 Hours Beechwood, Pecan, or Hickory
6.5 cm+ 2.6+ inches 15 - 18 Days 36 Hours Hickory, White Oak, or Alder

Precision Master Protocol

  1. 1
    Square up the pork belly slab by trimming ragged edges and removing any remaining cartilage or bone fragments.
  2. 2
    Measure exact Cure #1, pure non-iodized salt, and brown sugar on a precision gram scale.
  3. 3
    Rub the curing mixture evenly across all sides of the belly slab, concentrating along thicker muscular regions.
  4. 4
    Place the belly in a heavy-duty vacuum pouch or sealable bag with any residual dry rub and seal completely.
  5. 5
    Refrigerate at 36F to 38F for the calculated duration, flipping the bag once every 24 hours to redistribute liquid brine.
  6. 6
    Rinse lightly under cold water, pat completely dry with lint-free towels, and rest uncovered on a wire rack at 38F for 24 hours to form a glossy, tacky pellicle before smoking.
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