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Calcimator

pH Adjustment Calculator

Calculate acid dose needed to reach a target pH for food preservation, using buffer capacity and acid type.

Inputs

Results

Acid needed (g)

1,325.63

Acid needed (kg)1.33
50% stock solution (mL)2,651.3
pH change2.3
Final acid conc. (%)1.33
Titratable acidity (meq/L)69
[A⁻]/[HA] at target pH11.75
H Current$0
H Target0
How to Use This Calculator
  1. Enter the current pH and target pH of your food product.
  2. Set the batch volume in liters, select the acid type, and enter the buffer capacity of the food matrix.
  3. The calculator shows acid needed in grams and kg, 50% stock solution volume, pH change, final acid concentration, and Henderson-Hasselbalch conjugate ratio.
  4. Add acid incrementally while stirring and verify pH with a calibrated meter before committing to the full calculated dose.
  5. Acidified foods must reach pH ≤ 4.6 per FDA regulations for shelf-stable products.
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