
Freezing Florence Fennel
General preservation or storage guidance
Florence-fennel bulbs can be frozen in slices for cooked dishes after a three-minute blanch; expect the crisp raw texture to soften.
Method
- Wash the Florence-fennel bulb and remove the stalks and fronds. Trim the root end and cut the bulb lengthwise into quarters or crosswise into slices about 2.5 cm (1 in) thick.
- Bring plenty of water to a rolling boil, using about 8 litres per kilogram of fennel. Blanch the pieces for 3 minutes; alternatively steam-blanch for 5 minutes.
- Cool immediately in ice water for the same length of time as the blanch, then drain thoroughly.
- Pack in moisture-resistant freezer containers or freezer bags, press out excess air and seal. Label and freeze promptly.
- Use the fennel in soups, braises or other cooked dishes. Freezing changes the bulb’s crisp texture; keep it continuously frozen and thaw only the portion needed.
Storage
Freezer at −18°C or colder · Keep continuously frozen; no exact quality period stated
Sources and scope
- Fennel Draft 1 — Washington State University Extension
Method-specific source recorded in the prior content audit

Quick Refrigerator Fennel Pickle for Florence Fennel
Home recipe · fridge or freezer method
A small-batch Florence fennel vinegar pickle for prompt use from the refrigerator.
Ingredients
- 500 g fresh Florence fennel, washed and cut trimmed bulb thinly sliced
- 250 ml white vinegar labelled 5% acidity
- 250 ml water
- 15 g (1 tbsp) caster sugar
- 5 g (1 tsp) salt
- ½ tsp fennel seeds
Equipment
- Saucepan
- Clean heatproof jar with lid
- Kitchen scales and measuring jug
Method
- Wash the Florence fennel, remove damaged pieces and prepare it as specified: trimmed bulb thinly sliced. Pack loosely into a clean heatproof jar with the aromatics.
- Put vinegar, water, sugar and salt in a saucepan. Bring just to the boil, stirring until the sugar and salt dissolve.
- Pour the hot liquid over the vegetables until covered. Let the jar cool at room temperature, then refrigerate within 2 hours.
- Keep the vegetables submerged and refrigerated. This small-batch recipe is for prompt use and is not a canning recipe.
- Serve chilled as a relish or side. Use clean utensils; eat within 48 hours and discard sooner if there are signs of spoilage.
Storage
Refrigerate at 0–5°C within 2 hours; keep chilled throughout · Eat within 48 hours; freeze any cooked leftovers promptly if they will not be used
Sources and scope
- How to chill, freeze and defrost food safely — Food Standards Agency
Storage guidance only: keep the fridge between 0°C and 5°C, cool cooked food and refrigerate within 1–2 hours, and eat leftovers within 48 hours or freeze. This source does not validate the recipe or any shelf-stable process.

