Vacuum curing: Why it's the safest method

What's behind it?

With traditional open-vessel curing, your meat is constantly exposed to ambient air. Aerobic bacteria thrive, mold can take hold, and brine concentration fluctuates unpredictably. Vacuum curing eliminates all of that: the meat sits hermetically sealed with its brine or dry cure inside the bag.

The absence of oxygen in the bag almost completely inhibits the growth of aerobic bacteria. At the same time, the brine is drawn directly into the meat by the vacuum pressure — the process is measurably faster and more even than open methods. No part of the cut sits dry, no part gets over-salted.

Critically: you can dose the salt to the exact gram. 2.5% salt on 1 kg of meat means exactly 25 g of salt — and no more, no matter how long you cure. This is the equilibrium curing approach that Curination calculates by default.

How to do it right

• Weigh your meat – to the gram, this is the foundation for everything.
• Calculate your cure – typically 2.0–2.5% salt, 0.25% curing salt (pink salt/nitrite), and sugar/spices to taste, always based on meat weight.
• Massage it in – work the mixture evenly into all sides of the meat.
• Vacuum seal – place meat plus all spices in the bag, remove as much air as possible. A decent vacuum sealer makes a real difference here.
• Refrigerate – store at 2–5 °C. Rule of thumb: approx. 1 day per cm of meat thickness, but at least 5–7 days for thicker cuts like belly or loin.
• Flip daily – turn the bag once a day so the brine distributes evenly.
• Don't skip the resting phase – after curing, let it rest 1–2 days outside the bag in the fridge so the salt equalizes throughout.

Summary

Vacuum curing is safer, more precise, and more controlled than any open method — once you've tried it, you'll never go back.