I am thinking it’s because the discrete pieces in the salsa are fine bits, and thus more prone to biodegradation. One thing in my experience that helps is to take a small spatula, and scrape the neck of the jar back in to the bulk of the salsa, or alternatively, discard it. I also sometimes wipe the underside of the lid off with a paper towel. I’ve had success doing those two things.
1 Like
