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Field guide8 Curing Problems: How to Diagnose, Fix, and Prevent Them
Equipment

Mixers and Vacuum Mixers

Mixers may use paddles, ribbons, screws or counter-rotating shafts in horizontal or vertical vessels. Vacuum versions enclose the mass and remove air during part or all of the cycle.

Each machine has an effective fill range. Too little product may not engage the mixing elements, while overfilling creates dead zones, motor overload and poor ingredient distribution.

Salt and mechanical action develop a sticky extracted protein film and distribute cure, water, spices and inclusions. Mixing endpoint depends on product, temperature and required structure rather than time alone.

Vacuum can reduce visible air, improve density and limit oxidation, but it does not guarantee a void-free mass. Leaks, foaming and product rheology affect performance.

Mechanical work raises temperature, especially in long cycles. Interlocked lids, safe isolation and cold product protect both operator and formulation.

Shaft seals, paddles, discharge gates and vacuum lines can retain product. Verify ingredient distribution, extracted bind, temperature, residual air and clean reassembly.

Related in the Codex

References

  • SRC-0005
  • SRC-0009
  • SRC-0012
  • SRC-0039
  • SRC-0044
  • FAO Small-Scale Sausage Production — Layout and Equipment
  • FDA Food Code 2022