• FAQ & Troubleshooting

FAQ & Troubleshooting

Commonly seen problems and some possible causes

Foaming in mixing tank or aging tank

• Too fast agitation
• Liquid inlet at top of tank
• Agitation at too low liquid level

Low mix viscosity:

• No E/S system
• Too low dosage of E/S
• Weighing problems
• E/S stuck in filter

High mix viscosity:

• Too high dosage of E/S
• Weighing problems

Lack of shape stability:

• Too high drawing temperature
• Lack of emulsifier
• Poor aging
• Poor whipping/air cell distribution
• Lack of fat agglomeration
• Weak continuous phase

Lack of melting resistance:

• Lack of emulsifier
• Poor aging
• Poor whipping/air cell distribution
• Lack of fat agglomeration
• Too high drawing temperature
• Low TS

Shrinkage:

• Back pressure
• Weak continuous phase
• Poor recipe
• Low fat
• Low or lacking emulsifier
• Transportation over high altitudes

Lactose crystallization/Sandiness

• Too high lactose content
• Heat shock

Cold, icy texture:

• Lack of homogenization
• Insufficient aging
• High drawing temperature
• Poor recipe
• Lack of or wrong emulsifier
• Heat shock

No/poor air incorporation:

• Lack of/poor homogenization
• Insufficient aging
• High drawing temperature
• Poor recipe
• Lack of or wrong emulsifier

Over churning:

• Low drawing temperature
• Type of fat
• Freezer parameter

Powdery/mealy texture:

• Undissolved solids
• Low pH/protein precipitation