Learn how to preserve fresh mackerel with this ultimate guide on lacto-fermented fish! Unlock the secrets to perfectly fermented fish, learn the differences between cured mackerel and Surströmming, and experiment with flavors using different seasonings. Whether you’re a fermentation novice or pro, this guide is a treasure trove of tips and recipes for fresh mackerel. #FermentedMackerel #FermentedFish #PreservingMackerel