Fish Curing Salt & Salt & Cured Yield
Cures the catch
Enter your fresh fish weight, the salt ratio for dry salting and the moisture loss to get the salt needed and the cured weight you'll get.
Salt dose & cured yield
Next: weigh out 30 kg of clean salt and layer it through the fish; expect roughly 65 kg of cured product once the brine drains and moisture leaves.
Higher salt ratios and longer cures give safer, longer-keeping fish but a saltier, lower-yield product; actual moisture loss depends on species, fat content, cure time and drying conditions.
Fish curing salt — key facts
- Method
- salting + drying preserves fish
- Salt needed
- fresh weight × salt ratio
- Heavy cure
- ≈ 1:3–1:4 (25–35%)
- Cured yield
- fresh weight − moisture lost
- Typical yield
- ≈ 40–60% of fresh
- Salt
- clean, food-grade, coarse
- Best for
- weak cold chains
- Privacy
- Runs in your browser; nothing uploaded
Salt and sun keep fish where the fridge can't reach
Where cold chains are weak or absent, salting and drying is how fish is preserved — salt pulls water out of the flesh and out of spoilage microbes, and drying finishes the job, leaving a product that keeps for weeks or months without refrigeration. In dry salting, the salt is applied as a ratio of the fish weight, and as the moisture leaves, the finished cure weighs less than the fresh fish you started with. Getting the salt and the yield right matters for both quality and cost.
This tool gives the salt needed and the cured yield from your fresh fish weight, salt ratio and expected moisture loss. Use it to buy the right amount of salt, scale a cure from a trial batch, and know how much cured product a catch will make. Pair it with the Dehydration Ratio, Cold Storage Shelf-Life and Value Addition Profit tools for a full post-harvest plan.
Buy the right salt
Scale salt to the catch and your cure ratio.
Predict the yield
Know the cured weight before you start.
Preserve without cold
Keep fish where refrigeration is unreliable.
Scale a trial
Take a tested ratio up to a full batch.
Frequently Asked Questions
How does salting preserve fish?+
Salt draws water out of the fish and out of any spoilage microbes by osmosis, leaving too little available moisture for bacteria and moulds to grow. Combined with drying, it brings the fish to a moisture level where it keeps for weeks or months without refrigeration — invaluable where cold chains are weak or unreliable.
How is the salt needed calculated?+
In dry salting, salt is applied as a ratio of the fish weight. Salt needed = fresh fish weight × salt ratio. For example, a 1:4 cure (one part salt to four parts fish, a 25% ratio) on 20 kg of fish needs 5 kg of salt. This tool works out the salt for your weight and chosen ratio.
What salt ratio should I use?+
It varies with the method, fish type and climate. Heavy dry cures use a lot of salt — roughly 1 part salt to 3–4 parts fish (25–35%) — for long keeping in warm, humid conditions; lighter cures use less for milder, shorter-keeping products. Fatty fish and hot climates generally need more salt than lean fish in cool conditions.
Why is the cured weight less than the fresh weight?+
Because the fish loses moisture during salting and drying — that water leaving is what preserves it. So even though you add salt, the finished cured product weighs less than the fresh fish you started with. The cured yield is the fresh weight minus the moisture lost (the tool applies your moisture-loss figure).
What's a typical cured yield?+
It depends on how much moisture is driven off. Heavily salted, well-dried fish can end up at roughly 40–60% of its fresh weight, while lightly cured product retains more. Enter the moisture loss you expect for your method and climate to estimate the cured weight from a given batch of fresh fish.
Does the type of salt matter?+
Yes — use clean, food-grade salt. Coarse solar or rock salt is common for dry curing because it penetrates steadily; very fine salt can case-harden the surface and trap moisture inside. Avoid salt with too many impurities, which can discolour the fish or carry spoilage organisms. Keep the salt and the fish clean throughout.
How should I prepare the fish before salting?+
Work with fresh fish, kept cool until you start. Gut, and for larger fish split or fillet so the salt can reach the thickest flesh. Wash off blood and slime, then layer fish and salt — typically alternating layers in a clean container — so every surface is in contact with salt. Drain the brine that forms as moisture is pulled out.
Does this work for any fish or unit?+
Yes — enter your fresh fish weight, the salt ratio for your cure, and the moisture loss you expect, for any species you dry-salt. The salt-as-a-ratio and moisture-loss model is general; only the ratio and loss figures change with the fish and method.
Are the figures exact?+
They're solid planning figures. Real salt uptake and cured yield depend on the fish's size, fat and freshness, the salt, the temperature and humidity, and how long you cure and dry. Run a trial batch to calibrate your ratio and moisture loss, then use this tool to scale the salt and predict yield for larger lots.