Frequency of cleaning of fully automation machine

hi all, 

We  manufacturing of tube ice , ingredient solely is water and our process from raw material till finished product in enclosed system and fully automation without person involved. Hence, Is it oaky we set frequency of machine cleaning on weekly basis?     

Is the ice meant to be used in food product or not?

you should use swabs plan to determine when the machine needs cleaned. if there is a big fail after a week then bring the cleaning process  forward.

This is what a validation study is for.  Pick a number for your run time, do lots of testing to ensure the ice meets specifications. 

Once that is done and you have determined a level of risk you're comfortable with, you run normally and do some lower frequency verification testing to make sure the product is staying within the expected/allowed range.

Is the ice consumable or food contact?  What is the water source?  With reverse osmosis water and consumption a week seems like a reasonable starting point for validation.

yes, meant to be direct consumption

Is the ice meant to be used in food product or not?