Why the fermentation tank polishing precision have to be less 0.4μm-0.5μm?
Normally Roller processing can reach 0.6~0.8μm polishing precision, polishing processing can reach 0.4~0.6μm, while the Electronic polishing can reach 0.3~0.4μm.
As we all know, yeast size is about 6-10μm, Roller processing is enough for preventing yeast contaminants. But the bacterial is among 0.7-4 μm in size, so Roller processing is not enough, the fine polishing is required to prevent bacterial contaminants happening.
Every welding parts and ports need to be paid more attention for polishing testing, as those place are very easy to contaminate.
Tiantai beer equipment company adopt polishing testing machine to ensure we give a qualified fermentation tanks.
Now our inner tank adopt acid washing, the precision can be among 0.3~0.5μm.
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