How to make your fish stock properly

You can significantly reduce food waste by transforming your fish scraps into a flavorful stock, but it's important to remember that you can't just toss everything in without some preparation. While the prep work is minimal, taking the time to do it properly will elevate your stock from mediocre to exceptional.
To start, ensure you thoroughly rinse off any slime and residue from the bones. Pay special attention to cleaning the fish head as well. Most importantly, be sure to remove the fish's gills, as they can negatively impact the quality of your stock. Fish gills still contain blood, which can affect both the color and taste of the final product. Aside from these considerations, making fish stock is relatively straightforward and can be ready in as little as 45 minutes. It pairs wonderfully with a variety of vegetables and herbs, with classic choices including onions, celery, carrots, thyme, and parsley.
What can you actually do with fish stock?

You've successfully created your fish stock and minimized food waste—fantastic! But what practical uses does this freshly made stock have? Naturally, it can be incorporated into various seafood recipes, ideally those that feature the same type of fish used in the stock. For instance, a rich, oily salmon stock serves as an excellent foundation for a salmon chowder or a creamy lohikeitto, while chowders with clams or crab are better complemented by a shellfish stock. Additionally, fish stock enhances more intricate dishes like paella and risotto, enriching the overall flavor profile.
The great news is that you can take your time with fish stock. It freezes exceptionally well, allowing you to portion it into containers and store it for later use. You can expect your fish stock to remain good in the freezer for up to two months, giving you ample opportunity to create a variety of delightful dishes.
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