Falling film evaporation for grape juice concentration
Assess grape-juice concentration using a measured feed basis, target solids, deposit risk, concentrate viscosity and cleaning requirements.
Establish the incoming juice condition
Describe clarification, suspended solids and any upstream treatment affecting the evaporation feed. Record temperature and concentration at the point where the liquid enters the equipment. Variability between products and campaigns should be included in the required operating range.
Review deposits and the final concentrate
Provide representative composition and observations of deposits where available. Changes in concentration and temperature can affect rheology and fouling behaviour. Ask the proposal to address the final pass, wetting and cleaning access instead of assuming that a stable inlet pump flow resolves those issues.
Define quality and handling requirements
State the concentration target, quality checks and downstream storage or transfer conditions. Final-concentrate pumping and cooling are part of a useful interface discussion, even when supplied separately. Acceptance needs a measured basis rather than a broad claim of gentle processing.
Send a duty that can be evaluated
Useful starting information includes feed kg/h, inlet and target solids, operating hours, feed temperature, utilities and the intended cleaning interval. Add final-concentrate viscosity and sample information when available. Keep litres per hour separate from mass flow unless a measured density conversion is provided.
Related selection resources
How to specify falling film evaporator capacity
Separate feed throughput from evaporation capacity. Specify kg/h water removal, inlet and final solids, operating hours and the measurement basis.
Read the engineering basis ↗APPLICATION & SELECTIONViscosity and minimum wetting in falling film evaporation
Review concentrate viscosity, particles, distributor geometry and minimum liquid flow before choosing a falling film evaporator for a food liquid.
Read the engineering basis ↗APPLICATION & SELECTIONEvaporator materials and CIP specification for food liquids
Specify product-contact materials, cleaning chemistry, inspection access, seals and CIP verification for a falling film evaporation project.
Read the engineering basis ↗Give the equipment a clear brief.
Tell us the liquid, feed rate and concentration target. Add the utility conditions you know; we will identify what needs further review.