Curing Salts Explained: Insta Cure #1, #2 & Natural EcoCure

If you're moving beyond fresh sausage to bacon, smoked sausage, salami, or pepperoni, there's one ingredient category you can't skip: curing salts. They're what make cured meats safe, give them their signature color and flavor, and protect against dangerous bacteria during smoking, drying, and aging.

But the names can be confusing. What's the difference between Insta Cure #1 and #2? What is EcoCure, and how is it different? And what's sodium erythorbate for? This guide breaks down each one — what it is, what it does, and exactly what you'd use it for — so you can walk into your next project knowing precisely what to reach for.

A quick but important note first: curing salts are powerful, and using them correctly is a genuine food-safety matter, not just a flavor preference. The amounts below come straight from our product directions, but always follow the instructions on your specific package and a tested recipe. Never eyeball curing salt.

First: What Are Curing Salts, and Why Use Them?

Curing salts are salt-based blends containing a small, carefully measured amount of sodium nitrite (and, in some cases, sodium nitrate). That nitrite does three important jobs:

• Safety: It protects against dangerous bacteria — most critically Clostridium botulinum (botulism), along with Listeria and others — during the low-temperature, long-duration processes of smoking, curing, and drying, where those bacteria would otherwise thrive.
  
• Color: It gives cured meats their characteristic pink or red color, the difference between rosy bacon and gray pork.
  
• Flavor: It develops the distinctive "cured" taste we associate with ham, salami, pepperoni, and smoked sausage.

Curing salts are traditionally tinted pink, so they're never mistaken for regular table salt — an important safety feature, since they're used in such small amounts. Conventionally, that color comes from synthetic red dye. Ours doesn't: both Insta Cure #1 and #2 get their natural pink hue from annatto, a plant-based spice, so you get the same clear visual safety cue without the synthetic colorant.

Insta Cure #1: For Cooked, Smoked & Short-Cure Meats

What it is: Insta Cure #1 is a basic curing salt containing 6.25% sodium nitrite and salt. Our version is naturally colored with annatto spice, so there's no synthetic red dye.

What it does: It's the workhorse cure for any meat that will be cooked, smoked, brined, or canned — anything that's cured over a relatively short period and then cooked or eaten. It protects against botulism while developing cured color and flavor.

What makes it unique: The key distinction is time. Insta Cure #1 delivers its nitrite relatively quickly, which is exactly what you want for products that will be cooked or eaten within a shorter window rather than aged for months.

Used for: Sausage of all kinds, poultry, fish, ham, bacon, luncheon meats, corned beef, hot dogs, bologna, smoked sausage, pastrami, and dry cured pastrami. Add it directly to ground meat or dissolve it in a brine for immersion or pump-curing bacon and hams.

Not sure how much to use? We're building a Cure Calculator to make dosing simple and precise — [link coming soon]. Until then, follow the usage table on the product page and your recipe.

Insta Cure #2: For Dry-Cured & Aged Meats

What it is: Insta Cure #2 contains salt, 6.25% sodium nitrite, and 1% sodium nitrate — with the same natural annatto coloring, no synthetic dye.

What it does: That added sodium nitrate is the whole point. Insta Cure #2 works like a time-release capsule: the nitrate slowly breaks down into nitrite, and then into nitric oxide, curing the meat gradually over weeks or months. That sustained protection is essential for products that are cured and dried over a long period rather than cooked.

What makes it unique: The sodium nitrate gives it staying power. Where Insta Cure #1 is for short, cooked cures, #2 is built for the long haul — some products cure for up to six months.

Used for: Dry-cured products that don't require cooking, smoking, or refrigeration — pepperoni, hard salami, Genoa salami, prosciutto-style hams, dried farmer's sausage, venison landjäger, and capicola.

Important: Don't use Insta Cure #2 for brine or wet curing. Its slow-release chemistry is designed for dry-cured applications only.

Insta Cure #1 vs. #2: The Simple Rule

If you remember nothing else, remember this:

• Cooking or smoking it soon? → Insta Cure #1 (bacon, smoked sausage, hot dogs, hams, pastrami)
  
• Drying and aging it for weeks or months? → Insta Cure #2 (salami, pepperoni, capicola, dry-cured whole muscles)

They are not interchangeable. Using #1 where #2 is required leaves a long-aged product without protection for most of its cure; using #2 where #1 belongs adds nitrate to a cooked product that doesn't need it.

EcoCure #1 & #2: The All-Natural Alternative

What it is: EcoCure is The Sausage Maker's all-natural curing blend — our alternative to traditional nitrite cures like Insta Cure and Prague Powder. Instead of synthetic sodium nitrite, EcoCure derives its curing power from natural fruit, spice, and vegetable extracts.

What it does: EcoCure protects against the same dangerous bacteria as traditional cures — C. botulinum, L. monocytogenes, and C. perfringens — and produces the same appealing red cured color, but without synthetic nitrites. And unlike many natural celery-based cures, EcoCure does this without the lingering celery taste.

What makes it unique: It's the natural-ingredient route to curing. If you or your customers prefer to avoid synthetic additives but still want safe, properly cured meats with good color and flavor, EcoCure is the answer.

The #1 vs. #2 distinction mirrors Insta Cure:

• EcoCure #1 — the natural substitute for Insta Cure #1 / Prague Powder #1, for cures lasting 30 days or less: bacon, emulsified sausages (hot dogs, bologna), smoked sausage, hams, and pastrami.
  
• EcoCure #2 — the natural substitute for Insta Cure #2 / Prague Powder #2, for dry-cured projects lasting longer than 30 days: salami, capicola, lonzino, and other dry-cured whole muscles.

Both are used at 1% of the meat's weight (about 1.6 oz per 10 lbs of meat).

Sodium Erythorbate: The Cure Accelerator

What it is: Sodium erythorbate is a cure accelerator and antioxidant — a supporting ingredient used alongside your curing salt, not a cure on its own.

What it does: Two things. First, it speeds up the breakdown of sodium nitrite, which lets you smoke cured meats immediately after stuffing rather than waiting. Second, it acts as an antioxidant that prevents discoloration in cured meats.

What makes it unique: It's especially valued by anyone making cured sausage with high-temperature cheese. Erythorbate acts as a color stabilizer, keeping the meat in contact with the cheese from oxidizing and turning odd colors (which isn't spoilage, but does look unappealing). The result is an even, consistent appearance.

Used for: Cured, smoked sausages — particularly when you want to smoke right after stuffing, or when making cheese-filled sausages. A little goes a long way: about 1 oz per 100 lbs of meat, or roughly 1 teaspoon per 10 lbs.

Which Curing Ingredient Do You Need?

Here's the quick reference:

A Final Word on Safety

Curing salts are one of the most rewarding tools in meat-making — they unlock bacon, salami, pepperoni, and dozens of traditional cured products. But they demand respect. Always measure precisely, always follow your package directions and a tested recipe from a trusted source, and never substitute one cure for another without understanding the difference. When you use them correctly, they're completely safe and absolutely essential.

New to curing? A great next step is pairing the right cure with the right casing — see our guide to choosing the right casing for your recipe. And if you're making fermented, dry-cured sausages, our Bactoferm starter culture guide walks through the cultures that work alongside Insta Cure #2.

Shop Curing Ingredients

• Insta Cure #1 — For cooked, smoked, and short-cure meats
  
• Insta Cure #2 — For dry-cured, aged meats
  
• EcoCure #1 — The all-natural curing alternative
  
• EcoCure #2 — The all-natural curing alternative
• Sodium Erythorbate — Cure accelerator and color stabilizer
  
• All Curing Ingredients — Browse the full collection