When you make wine, you use Saccharomyces Cerevisiae yeast to ferment sugary juices. After you're done, you want to avoid them doing anything by using some chemicals etc. There are other living things that can ruin your wine or food in shelf.

Can you use viruses to infect and kill the bacteria that tries to infect your wine?

Like there are stuff that would turn your wine to vinegar, no one wants them.

And would it be safe to drink?

When you make wine, you use the yeast Saccharomyces cerevisiae to ferment sugary juices. After you're done, you want to avoid them doing anything by using some chemicals etc. There are also other living things (especially bacteria) that can ruin your wine or food during storage. For example, there are bacteria that would turn your wine into vinegar.

Have viruses been identified that infect and kill the bacteria that spoil wine or other foods?