Cleaning minerals / sterilization sequence (steam)
1. Cleaning head.
Use sterile air to empty the remaining beer in the keg
Rinse the bucket with fresh water or recycled water first.
Use air to drain the water in the barrel
Wash with hot base or hot acid
Low flow rate hot alkali or hot acid cleaning
Discharge hot alkali or hot acid solution into the recovery container with sterile air
Finally rinse with hot water
Low flow hot water rinse
Use steam to empty the hot water in the keg
Use steam to pressurize the barrel to 20 psi
Relieve pressure from the dispenser and the wine spear
2. Sterilization control.
Use steam sterilization for 60 seconds
3. Irrigation head.
Steam cleaning wine spear and beer spear
Discharge the steam pressure inside the barrel
Empty the barrel with gas
Pressurize to 20 psi
Remove the dispenser
Clean the wine with water or gas
Barrel - quality control testing
A. Cleaning agent jar titration test.
Quality control tests should be performed on the cleaning agent unit and the cleaning agent tank before starting, and each 8-hour operation group should be tested at least twice. Adjust the frequency of detection to achieve the pass line of the quality control department. The acid droplet level (phosphorus) is in the range of 0.25% up to 0.4% v/v and the alkali titration level (corrosive) is in the range of 1.5 to 2.0% v/v.
B. Washing water residue and titration detection in the barrel
After the process of cleaning the head is completed, the sterilization process must be carried out and stopped immediately before the process of washing the head.
When retrieving the barrel at the equipment outlet, a cold water hose can be installed to cool the outer surface of the barrel (if steam cleaning is used). Use a quality control dispenser or a funnel dispenser (remove the carbon dioxide and beer detection valve).
The bucket must be inverted and passed through the carbon dioxide port of the dispenser to allow the water to be drained using carbon dioxide or air.
A 50L barrel or a 1/2BBL barrel normally allows 40-80ml of condensate to be detected or to wash residual water. The upper limit is 100mm. If these limits are exceeded, the equipment operation, steam quality data and associated steam main condensate tank must be tested simultaneously.
The condensate remaining in the barrel can be detected by titration to ensure no acid and/or alkali residue.
l If steam cleaning is used, the pH of the condensate must be detected and known.
l The pipeline of each equipment is tested once a day and then reduced to the qualified line of the quality control department.
l Another completely cleaned barrel was subjected to a similar experiment by cleaning the potting head and detecting that the residual water in the moral barrel should not exceed 15 ml.