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CIP Cleaning System For Big Brewery

For any large brewing plant, the CIP cleaning system stands as an essential core unit throughout production. Its role goes well beyond simple washing; this system directly shapes beer quality, production output, cost management and overall food safety standards. CIP short for Cleaning In Place, also known as inline cleaning. This method circulates detergent and sanitizer inside sealed pipelines and vessels to complete full cleaning and disinfection automatically, with no need to take apart any equipment

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Description

CIP Cleaning System for Big Brewery

Application

A full CIP process includes several sequential cycles with rigid limits on temperature, concentration, duration and flow rate. Pre-rinsing: Warm or ambient water flushes loose dirt like yeast sludge. Waste water is drained or reused for preliminary washing of other gear. Caustic Wash: Hot 1.5–2.5% NaOH liquid at 75–85°C dissolves organics such as protein, grease and hop resin. As the primary cleaning phase, it lasts 30–45 minutes. Intermediate Rinse: Fresh water washes residual alkali and stripped impurities until drain water shows neutral pH. Acid Wash: 0.8–1.5% nitric or phosphoric acid at 60–70°C dissolves mineral beer stone and forms a protective passivation film. It runs once every 3–4 caustic cycles according to scaling conditions. Final Rinse: Qualified sterile hot or cold water clears all acid residues to guarantee sanitation. Sanitization: Before production, disinfectants like peracetic acid, chlorine dioxide or 85°C+ hot water eliminate internal microbes. Sanitized equipment must be used right away to avoid secondary pollution.

CIP cleaning system

CIP System Configuration

Core Configuration: Multi-Tank Central CIP Station

Large breweries typically employ a functional, segregated multi-tank system for reagent recovery, energy savings, and efficient operation.

Core Component	Function & Description	Large-Scale Plant Characteristics
1. Caustic Tank & Pump	Primary cleaning power. Stores heated Sodium Hydroxide (NaOH) solution for removing organic matter (proteins, yeast, hop resins).	Large capacity (several cubic meters). Equipped with a plate heat exchanger for heating and maintaining temperature (typically 75-85°C). Includes a concentration monitoring system (conductivity probe) for automatic dosing of concentrated caustic.
2. Acid Tank & Pump	Periodic cleaning power. Stores Nitric (HNO₃) or Phosphoric (H₃PO₄) acid solution for dissolving inorganic beerstone (calcium oxalate, magnesium oxalate) and passivating equipment surfaces.	Slightly smaller capacity than the caustic tank. Similarly equipped with heating, temperature maintenance, and concentration monitoring. Pumps and piping are not shared with the caustic system to prevent violent chemical reactions.
3. Hot Water Tank & Pump	Rinsing & Sanitization. Stores heated hot water (typically >80-85°C).	Large insulated tank, often heated via direct steam injection or a plate heat exchanger. Used for final rinsing and hot sanitation, the most cost-effective sanitization method.
4. Water/Recovered Water Tank & Pump	Pre-rinsing & intermediate rinsing. Collects and temporarily stores pre-rinse water for use in the next pre-rinse cycle, significantly saving water.	Features recovery functionality. The first pre-rinse water is collected and used for the first pre-rinse of the next tank. This is key for water conservation and reducing effluent in large plants.
5. Neutralization Tank/Effluent System	Environmental treatment. Mixes acidic and alkaline waste streams in a neutralization tank for safe discharge only after pH levels meet standards.	Essential environmental infrastructure for large plants, typically equipped with automated pH monitoring and acid/alkali dosing systems for adjustment.