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Cleaning of the equipment and pipeline is vital in the food processing factory or the following precipitate will affect the food quality .CIP is an ideal equipment for cleaning and it’s expanding quick in factories, especially in dairy work.

CIP cleaning is CLEAN IN PLACE.

CIP cleaning is a safe and automatic cleaning system that does not decompose the production equipment and can be easily operated. It has been introduced to almost all food, beverage and pharmaceutical factories. CIP cleaning can not only clean the machine, but also control microorganisms.CIP cleaning technology has been widely used in advanced food industry.

CIP cleaning device has the following advantages:

• Rationalize production plan and improve production capacity.
• Compared with hand washing, the cleaning effect is not affected by the difference of operators, and the product quality is also improved.
• It can prevent the danger in cleaning operation and save labor.
• It can save the cost of cleaning agent, steam, water and production costs.
• It can increase the service life of machine parts.

General manufacturers can choose detergents according to the pollution nature and degree of the cleaning object, composition material, water quality, cleaning method, cost and safety. The commonly used detergents are acid, alkali and sterilizing detergents.

The advantages of acid and alkali detergents:

• Can kill all microorganisms; 
• Remove organic matter effectively.

Disadvantages are:

• Strong irritation to skin;
• Poor washing ability.

The advantages of the sterilizing agent are as follows: 

• Quick sterilization effect;
• Effective for all microorganisms;
• Generally non-toxic after dilution;
• Not affected by the water hardness;
• Forming a thin film on the surface of the equipment;
• Easy to measure the concentration and easy to measure;
• Can remove odor.

The disadvantages are:

• Special taste;
• Need certain storage conditions;
• Different concentrations of bactericidal effect is different;
• Easy to freeze in low temperature environment ;
• Improper use can have side effects;
• Mixed with dirt bactericidal effect decreased significantly;
• Easy to pollute the environment and leave traces when spilled.

Acid in acid-base detergent refers to 1% – 2% nitric acid solution;

Alkali refers to 1% – 3% sodium hydroxide used at 65 ℃ – 80 ℃.

Bactericides are often used chlorine bactericides, such as sodium hypochlorite, etc.