How long will homemade salsa last (safely) in the refridgerator?

Thanks lizarella - that is a great idea and i'll just have to make some ricotta this weekend and give it a try :)

You can make a lacto-fermented salsa verde that will probably last a lot longer in your fridge, up to a couple of weeks. And the flavor won't be that different from non-lacto-fermented salsa verde, perhaps a bit more acidic, which might not be a bad thing. Just get your hands on some whey (a few tablespoons should be enough. I think the easiest way to do it is strain some yogurt through cheesecloth. Add a bit to your salsa verde, then leave the finished product at room temperature for a couple of days before moving into the fridge.

For flavor it will last at most one or two days. For food safety, a bit longer. But salsas are not one of those things that improves with a rest in refrigeration.