Search Easy Food Dehydrating

How to Dehydrate Fish and Seafood Safely

Photo of Susan Gast
Susan Gast, Author and Food Preservation Enthusiast
Susan has been dehydrating and preserving foods for over a decade, sharing practical, tested methods that help readers make healthy, long-lasting meals at home.

Fish and shellfish can be dehydrated for later use in soups, chowders, rice dishes, casseroles, and other cooked meals. Because seafood spoils readily and may contain harmful bacteria or parasites, it must remain cold during preparation, reach a safe internal temperature before dehydration, and be refrigerated or frozen after drying.

✅ Quick Answer: How do you dehydrate fish and seafood safely?
Use fresh or properly thawed seafood and keep it refrigerated during preparation. Remove the skin, shells, bones, and visibly fatty or damaged areas, then cut the seafood into small, uniform pieces. Heat fish and shellfish to an internal temperature of 145°F before dehydrating at 145°F. Cool completely, package airtight, and refrigerate the finished seafood or freeze it for longer storage.

This guide covers salmon, tuna, and shrimp dehydrated for later use in prepared meals. For fish jerky, use the separate Homemade Fish Jerky Recipe and its preparation, heating, dehydrating, doneness, and refrigerated-storage instructions.

Salmon, Shrimp, and Tuna

Purchase seafood from a reputable market and keep it refrigerated or frozen until you’re ready to prepare it. Both fresh seafood and properly frozen seafood may be used. Frozen seafood isn’t inherently less safe; thaw it in the refrigerator and use it promptly.

Fresh fish should have firm flesh and a mild aroma. Shrimp should appear moist and intact rather than slimy or dried around the edges. Don’t use seafood with a strong sour, rancid, fishy, or ammonia-like odor, or seafood that has been stored or thawed improperly.

See the FDA’s guidance on choosing and serving fresh and frozen seafood for additional purchasing and handling information.

How to Prepare Seafood for Dehydration

Keep seafood refrigerated while preparing it and work with clean hands, utensils, cutting boards, and surfaces.

For fish, remove the skin, bones, dark bloodline, and any visibly fatty or damaged areas. For shrimp, remove the heads, shells, tails, legs, and digestive tract. Don’t use shrimp or fish that has an unusual odor, slimy surface, or other signs of spoilage.

Cut fish into even pieces approximately ⅛ inch thick and no thicker than ¼ inch. Butterfly large shrimp or cut them into uniform pieces so they heat and dry evenly. Keep the prepared seafood refrigerated until you’re ready to heat it to 145°F.

a trio of shrimp

How to Dehydrate Cooked Shrimp Safely

Here are the steps for properly dehydrating shrimp at home:

  1. Prepare the Shrimp: Use fresh or properly thawed shrimp and keep it refrigerated until needed. Remove the heads, shells, tails, legs, and digestive tract.
  2. Cut for Even Drying: Butterfly large shrimp or cut them into uniform pieces. Smaller shrimp may be left whole if they are similar in size.
  3. Heat the Shrimp: Steam, poach, or bake the shrimp until several pieces reach an internal temperature of 145°F. If using previously cooked shrimp, reheat it to 145°F immediately before dehydration.
  4. Arrange the Shrimp: Preheat the dehydrator to 145°F. Blot excess surface moisture with clean, absorbent paper towels, then arrange the heated shrimp in a single layer without touching or overlapping.
  5. Dehydrate at 145°F: Begin checking the smallest pieces after approximately three hours. Rotate the trays if your dehydrator dries unevenly, and remove individual pieces as they finish drying.
  6. Test for Doneness: Allow a test piece to cool for several minutes. Properly dried shrimp should feel firm and thoroughly dry, with no soft or moist areas and no moisture appearing when squeezed. Depending on its size, it may become brittle. Continue dehydrating and retesting as needed.
  7. Cool and Refrigerate: Cool the shrimp completely, place it in an airtight container, and refrigerate it. Freeze any portion you want to keep longer.

💡 Outside the United States? Use my quick Fahrenheit-to-Celsius converter to find the equivalent Celsius temperature.


Two fresh salmon steaks

How to Dehydrate Cooked Salmon Safely

Follow these steps to dehydrate fresh or properly thawed salmon safely:

  1. Prepare the Salmon: Use fresh or properly thawed salmon and keep it refrigerated until needed. Remove the skin, pin bones, dark bloodline, and visibly fatty or damaged areas.
  2. Cut into Uniform Pieces: Cut the salmon into even pieces approximately ⅛ inch thick and no thicker than ¼ inch.
  3. Heat the Salmon: Bake, steam, or poach the pieces until several reach an internal temperature of 145°F. If using previously cooked salmon, reheat it to 145°F immediately before dehydration.
  4. Arrange the Salmon: Preheat the dehydrator to 145°F. Blot away excess surface moisture and oil with clean, absorbent paper towels, then arrange the heated pieces in a single layer without touching or overlapping.
  5. Dehydrate at 145°F: Begin checking the smallest or thinnest pieces after approximately three hours. Rotate the trays if your dehydrator dries unevenly, and remove individual pieces as they finish drying.
  6. Test for Doneness: Allow a test piece to cool for several minutes. It should feel firm and thoroughly dry, contain no soft or moist areas, and show no moisture when squeezed. Salmon’s natural oil may leave it slightly more pliable than lean fish.
  7. Cool and Refrigerate: Blot away any beads of oil, allow the salmon to cool completely, and package it airtight. Refrigerate it and freeze any portion you want to keep longer.

3 fresh tuna steaks

How to Dehydrate Cooked Tuna Safely

Follow these steps to dehydrate fresh or properly thawed tuna safely:

  1. Prepare the Tuna: Use fresh or properly thawed tuna and keep it refrigerated until needed. Remove the skin, bones, dark bloodline, and any visibly fatty or damaged areas.
  2. Cut into Uniform Pieces: Cut the tuna into even pieces approximately ⅛ inch thick and no thicker than ¼ inch.
  3. Heat the Tuna: Bake, steam, or poach the pieces until several reach an internal temperature of 145°F. If using previously cooked tuna, reheat it to 145°F immediately before dehydration.
  4. Arrange the Tuna: Preheat the dehydrator to 145°F. Blot away excess surface moisture with clean, absorbent paper towels, then arrange the heated pieces in a single layer without touching or overlapping.
  5. Dehydrate at 145°F: Begin checking the smallest or thinnest pieces after approximately three hours. Rotate the trays if your dehydrator dries unevenly, and remove individual pieces as they finish drying.
  6. Test for Doneness: Allow a test piece to cool for several minutes. It should feel firm and thoroughly dry, contain no soft or moist areas, and show no moisture when squeezed. Continue dehydrating and retesting as needed.
  7. Cool and Refrigerate: Allow the tuna to cool completely, package it airtight, and refrigerate it. Freeze any portion you want to keep longer.

How Fat Content Affects Dehydrated Fish

Fatty fish and lean fish can both be dehydrated, but their finished textures and storage qualities differ.

Salmon and other oily fish generally remain slightly more pliable because of their natural fat. That fat doesn’t dehydrate and can become rancid, so trim visibly fatty areas, blot away surface oil during and after drying, and keep the finished fish refrigerated or frozen.

Lean fish such as tuna, cod, haddock, or flounder generally dries firmer and may become more brittle. Lean fish still requires the same careful heating, dehydrating, cooling, and refrigerated-storage process.

Heat both fatty and lean fish to an internal temperature of 145°F before dehydrating them at 145°F. Don’t lower or raise the dehydrator temperature according to the fish’s fat content; instead, adjust the drying time and test cooled pieces individually for doneness.

How to Store Dehydrated Seafood Safely

Allow dehydrated fish or shrimp to cool completely before packaging it. Place it in a clean, airtight container, heavy-duty food-storage bag, or vacuum-sealed bag. Divide larger batches into smaller portions so the entire supply isn’t repeatedly exposed to air and moisture.

Keep homemade dehydrated seafood refrigerated and use it within two weeks. Freeze any portion you want to keep longer, and label each package with the type of seafood and the date it was made.

Vacuum sealing can reduce exposure to air and help protect frozen seafood from freezer burn, but it doesn’t remove moisture already present or make underdried seafood safe. Don’t rely on oxygen absorbers or desiccant packets to compensate for incomplete drying.

Check stored seafood for condensation, mold, sliminess, unusual softness, or a sour, rancid, or ammonia-like odor. If any appear, discard the entire package. Don’t taste questionable seafood to determine whether it is safe.

How to Clean Your Dehydrator After Drying Seafood

Cleaning your dehydrator is important to avoid bacterial growth and to keep your dehydrator in excellent condition.

After dehydrating fish, here is the best way to clean your dehydrator:

  1. Unplug and Cool the Dehydrator: Remove all food and allow the appliance to cool before cleaning it.
  2. Remove Trays and Liners: Wash removable trays, mesh liners, and drip sheets in hot, soapy water. Use a soft brush to clean corners and openings where seafood residue may remain.
  3. Sanitize Removable Parts: Follow the dehydrator manufacturer’s directions for sanitizing parts that contacted seafood. Use a dishwasher only when the trays and liners are specifically labeled dishwasher-safe.
  4. Clean the Dehydrator Interior: Wipe accessible interior surfaces with a clean, damp, soapy cloth, followed by a separate damp cloth to remove soap residue. Don’t immerse the dehydrator base, fan, heating unit, cord, or other electrical components in water.
  5. Dry Completely: Allow all trays, liners, and interior surfaces to air-dry completely before reassembling or storing the dehydrator.
  6. Clean the Work Area: Wash and sanitize cutting boards, knives, thermometers, counters, sink surfaces, and other items that contacted raw or partially prepared seafood.

Fishing for Your Own Seafood? Here’s What You Need to Know

dozing fisherman, rod in hand, waiting patiently for that bite

If you dehydrate fish you caught yourself, first identify the species correctly and check current local fishing regulations, fish-consumption advisories, and shellfish-bed closures. Advisories may recommend limiting or avoiding fish from particular lakes, rivers, or coastal waters.

Keep the catch cold on ice and refrigerate or freeze it promptly. Don’t use fish that was found dead, appears diseased or damaged, or wasn’t kept at a safe temperature.

Cooking and dehydration can destroy many harmful organisms, but they don’t remove mercury, PCBs, or other chemical contaminants. You can’t determine whether locally caught fish contains those pollutants by its appearance or smell.

Check the EPA’s fish and shellfish advisory information before eating or preserving a recreational catch.

Or do what I do—go to the store or fresh fish market!

Dehydrating Fish and Seafood FAQ

Can fish and shrimp be dehydrated safely at home?

Yes. Use fresh or properly thawed seafood, keep it refrigerated during preparation, and heat it to an internal temperature of 145°F before dehydrating it at 145°F. Refrigerate the finished seafood or freeze it for longer storage.

Can previously frozen seafood be dehydrated?

Yes. Properly frozen seafood isn’t inherently unsafe. Thaw it in the refrigerator, keep it cold during preparation, and use it promptly. Don’t use seafood that was thawed at room temperature or handled improperly.

Why must seafood reach 145°F before dehydration?

A food dehydrator may not heat moist fish or shrimp to a safe internal temperature quickly enough. Heating seafood to 145°F before dehydration destroys harmful organisms before moisture is removed and those organisms become more resistant to heat.

How do I know when seafood is thoroughly dehydrated?

Allow a test piece to cool for several minutes. It should feel firm and thoroughly dry, contain no soft or moist areas, and show no moisture when squeezed. Its flexibility will vary according to the type of seafood, fat content, and thickness; some pieces may remain slightly pliable while others become brittle.

How should homemade dehydrated seafood be stored?

Cool it completely, package it airtight, and keep it refrigerated for up to two weeks. Freeze any portion you want to keep longer. Vacuum sealing doesn’t make underdried seafood safe or suitable for room-temperature storage.

How do I rehydrate dried seafood?

Place only the amount you intend to use in a clean container and cover it with hot water or broth. Cover the container and rehydrate it in the refrigerator for approximately 30 to 60 minutes. Add it promptly to a cooked dish and heat the completed meal thoroughly before serving.

Is dehydrated fish the same as fish jerky?

No. This page covers fish and shrimp dehydrated for later use in prepared meals. Fish jerky uses a marinade and separate preparation, heating, doneness, and refrigerated-storage instructions. Follow the complete Homemade Fish Jerky Recipe rather than adapting this page.

Before you go, grab the free 5 Dried Food Recipes That Actually Taste Great PDF below—featuring carrot soup, minestrone, split pea soup, spicy beef jerky, and even banana cinnamon rolls.

5 Easy Dried Food Recipes free PDF

5 Free Dried Food Recipes
That Actually Taste Great

Put your dried food to delicious use!
Five very different recipes.
Not one dull bite...

← Get your free copy now!

5 Free Dried Food Recipes
That Actually Taste Great

5 Easy Dried Food Recipes free PDF

Put your dried food to delicious use!
Five very different recipes.
Not one dull bite...

Get your free copy now!

You Might Like These

You Might Like These


Before You Go...

If you enjoyed this page, tap the ❤️ in the lower right-hand corner.
It saves this page to your Grow bookmarks so you can find it again later.

You’ll also see quick share buttons to copy the link, post to Facebook,
or save it straight to Pinterest.