Curing Citrus Zest with Salt
Curing citrus zest in sea salt draws out the volatile oils and preserves the brightness of the fruit for months. By packing fresh strips or grated peel into a jar with a heavy ratio of coarse salt, you create a shelf-stable ingredient that acts as a concentrated seasoning for dressings, roasted meats, and stews.
Use only the vibrant outer skin.
Ensure your fruit is unwaxed and scrubbed clean. Avoid the bitter white pith entirely, as it will ruin the cure.
- Microplane or sharp vegetable peeler
- Small glass mason jar
- Wooden muddler or spoon handle
What goes in.
- 4large organic lemons, limes, or oranges
- 1/2 cupcoarse sea salt
Layer and pack for extraction
Alternating thin layers of zest and salt, use a muddler to firmly press the mixture down. This force ruptures the oil cells and forces the salt into the peel.
The method.
Prep the fruit
Wash and thoroughly dry the fruit. If using a peeler, take only thin strips of the colored zest, leaving all white pith behind.
Layer the jar
Sprinkle a base layer of salt in your jar. Add a layer of zest, then cover with more salt. Repeat until the jar is filled.
Muddle
Press the mixture down firmly using the handle of a wooden spoon. The salt should look damp as it pulls the citrus oils out.
Seal and store
Cap the jar tightly. Keep it in a cool, dark cupboard for three weeks, shaking it occasionally to redistribute the brine.
When it doesn't go to plan.
Always use non-iodized sea salt or kosher salt; table salt contains additives that can cloud the cure.
If the mixture looks too dry after two days, add a small pinch of extra salt to ensure the zest is completely submerged in brine.
Label your jar with the type of citrus used, as the aromas shift significantly during the curing process.
The ones that keep coming up.
How do I know when it is ready?
The zest will become translucent and very soft, and the salt will have turned into a fragrant, moist paste.
Does it need to be refrigerated?
Once cured, it stays shelf-stable for months in a dark pantry, though keeping it in the fridge preserves the bright color longer.
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