Preserving Chillies: Oils, Jams & Freezing

Autumn brings the final, fiery flush of chillies from garden and greenhouse—but what do you do with handfuls or even buckets of hot peppers? The good news: chillies are easy to preserve for winter use. From infused oils to spicy jams and simple freezing, here’s how to save your chilli harvest for bold flavor all year long.


1. Chilli Oil: Flavor Burst for Drizzling & Dipping

Safety first: Pure fresh chillies in oil (without acidifying) can potentially harbor bacteria—store in the fridge and use within 2 weeks. For longer life, dry your chillies first.

Quick Chilli Oil Recipe

  • Wash and dry chillies completely (use gloves for hot varieties).
  • Slice or lightly crush, removing seeds if desired.
  • Place in a clean, dry bottle and cover with a mild olive or sunflower oil.
  • Add extras: garlic cloves, rosemary sprigs, or peppercorns for extra flavor.
  • Infuse in the fridge for 3–5 days; strain into a clean bottle.
  • Store in the fridge; use for drizzling on pizza, pasta, or roasted veg.

2. Chilli Jam: Sweet, Spicy, and Versatile

Basic Chilli Jam Recipe

  • 500g ripe chillies (mixed colors/heat), 500g red peppers, 1kg sugar, 600ml cider vinegar, 1 thumb ginger, 4 garlic cloves.
  • Whizz chillies/peppers with ginger and garlic in a food processor. Pour into a pan with sugar and vinegar.
  • Boil until mixture reaches setting point (about 20–30 minutes); test on a cold plate.
  • Pour into sterilised jars, seal, and cool.
  • Great with cheese, as a sandwich spread, or a glaze for meats.

3. Freezing Chillies: Quick and Easy

  • Wash and dry chillies.
  • Slice, chop, or freeze whole (remove stems for less mess).
  • Spread on a baking tray, freeze until solid, then store in freezer bags.
  • Use straight from frozen—no need to thaw—for sauces, stir-fries, salsas, or chutneys.

4. Other Preservation Ideas

  • Drying: Thread onto string and hang in a dry, warm spot, or use a dehydrator. Store in jars and crumble as needed.
  • Pickling: Slice and pack into jars with vinegar, salt, garlic, and spices. Great for sandwiches and tacos.

Bonus Tips

  • Wear gloves when handling fiery varieties.
  • Label everything with date and variety/heat level—it all looks similar once stored!
  • Chillies keep best when processed or frozen right after picking.

Wrapping Up

From feisty oils and sweet-hot jams to frozen and pickled stash, preserving chillies lets you savor summer’s fire throughout the coldest months. Try a few methods and discover which works best for your cooking and spice level!


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