1.Pre-cleaning: The first step is to remove dirt, labels and impurities from the outside of the . This can be accomplished by soaking, rinsing with a high-pressure water gun, or mechanical scraping.
2.Sorting and Screening: Bottles are inspected for breaks, cracks or severe deformation, and substandard bottles are removed.
3.Soaking: Bottles are immersed in hot water containing detergent to soften and remove residual substances such as beer residue, dirt and grease from the bottle.
4.Brushing: The interior and exterior of bottles are scrubbed using a rotating brush or high-pressure jetting device to completely remove stains.
5.Lye Cleaning: Sometimes an alkaline solution is used to further remove stubborn stains and organic matter.
6.Rinsing: The bottle is rinsed several times with plenty of water to ensure that the detergent and residual stains are completely removed.
7.Disinfection: High-temperature steam disinfection, chemical disinfectant immersion (e.g. chlorine disinfectant) or UV irradiation are used to kill microorganisms such as bacteria, viruses and fungi that may be present.
8.Drying: The bottles are dried by hot air drying or natural drying to achieve a dry state and prevent microorganisms from growing again.
9.Quality inspection: Final inspection of the cleaned and sterilized bottles to ensure that their cleanliness, integrity and sterility meet the criteria for re-use.