You need to pay a lot of attention to food safety issues, when running a wine manufacturing plant. The last thing you want is to end up with a situation where people fall ill, after having consumed wine from your plant. That would be bad for business: for you would certainly begin losing customers, once people start having doubts about the safety of your wine. There could also be legal consequences, if it is ascertained that people fell ill after consuming wine from your plant. So you need to pay a lot of attention to the food safety issues.
In dealing with food safety issues in your wine manufacturing plant, one simple measure you can take is that of ensuring that all your workers have food handling certificates from the relevant authorities. The assumption is that the workers would have gone through the relevant food handling training, and gone through the necessary health tests, before getting the food handling certificates.
Further, you need to ensure that very high standards of hygiene are implemented in the wine manufacturing plant. You need to be consistent in the implementation of the high hygiene standards. Some manufacturers go as far as hiring people whose only role is that of implementing high standards of hygiene. Simple things, like keeping the equipment used in the manufacture of wine, as well as the space used in the manufacture of wine clean, can go a long way towards ensuring food safety. The end-goal is to ensure that you maintain an environment that discourages the growth of potentially harmful pathogens.
You need to go further, and subject the raw materials you use in the manufacture of wine to thorough safety tests, before using them. The system should be set up in such a manner that no raw material goes into the actual manufacture of wine without being tested first. You can have a scheduler application (working in the same manner as the Walmartone schedule application), to help you in scheduling your wine manufacture raw materials to thorough testing before use.