Freezing Rhubarb
General preservation or storage guidance
Tender rhubarb stalks can be frozen raw or briefly blanched; one-minute blanching helps retain colour, and the thawed pieces are best used in cooked dishes.
Method
- Choose firm, tender, well-coloured rhubarb stalks with few fibres. Discard every leaf; wash the stalks, trim the ends and cut into lengths that fit the freezer container.
- For better colour and flavour, blanch the pieces in boiling water for 1 minute, then cool promptly in cold water and drain well. They may also be packed raw.
- Pack the pieces tightly in freezer containers without sugar, leaving the headspace required by the container; alternatively cover with cold 40% syrup.
- Seal and freeze promptly. Label whether the pack is raw, blanched or syrup-packed so it can be used as intended.
- Use from frozen in pies, compote or other cooked dishes. Thaw in the refrigerator when needed and do not refreeze thawed rhubarb.
Storage
Freezer at −18°C or colder · Keep continuously frozen; no exact quality period stated
Sources and scope
- Freezing Rhubarb — National Center for Home Food Preservation
Method-specific source recorded in the prior content audit
Rhubarb Compote
General preservation or storage guidance
Gently cook prepared rhubarb until tender for a spoonable compote.
Method
- Wash rhubarb stalks, trim both ends and cut into short pieces; discard all leaves.
- Put the fruit in a saucepan with a small splash of water; add sugar or spices to taste, not as a preserving ratio.
- Cover and cook gently, stirring occasionally, until tender; add a little water if the pan becomes dry.
- Mash for a smooth sauce or leave the fruit in pieces for compote.
- Divide into shallow covered portions and cool quickly; refrigerate within 2 hours and eat within 48 hours, or freeze.
Storage
Covered portions in the refrigerator or freezer · Refrigerate cooked food within 2 hours; eat within 48 hours or freeze.
Sources and scope
- How To Chill Freeze And Defrost Food Safely — UK Food Standards Agency
Method-specific source recorded in the prior content audit
Bernardin Orange-Rhubarb Chutney
Complete procedure from the cited tested source
A complete tested orange-and-rhubarb chutney recipe with measured cider vinegar and a boiling-water process. This is the cited mixed recipe, not a generic rhubarb chutney formula.
Method
- For about six 250 ml jars, measure: 2 medium oranges; 6 cups (1,500 ml) chopped rhubarb; 3 cups (750 ml) coarsely chopped onions; 1½ cups (375 ml) raisins; 5 cups (1,250 ml) lightly packed brown sugar; 3½ cups (875 ml) cider vinegar; 2 tablespoons (25 ml) each crushed garlic and minced gingerroot; 1 tablespoon (15 ml) each curry powder and pickling spice; 1 teaspoon (5 ml) ground allspice; 10 peppercorns; and 1 tablespoon (15 ml) mustard seed. Keep all amounts unchanged.
- Remove only the coloured zest from the oranges and finely chop it. Squeeze and measure ⅔ cup (150 ml) juice. Combine the zest and measured juice with the rhubarb, onions, raisins, brown sugar, vinegar, garlic, ginger, curry powder, pickling spice and allspice in a large stainless-steel saucepan.
- Tie peppercorns and mustard seed in cheesecloth and add the spice bag. Bring the mixture to a boil, stirring constantly to prevent scorching. Boil gently, uncovered, for 1½–2 hours, stirring occasionally, until thick; remove the spice bag.
- Prepare six clean 250 ml canning jars on a rack in a boiling-water canner. The source heats jars covered with water to 180°F (82°C) and keeps them hot. Wash lids in hot soapy water and dry; follow the lid maker’s directions.
- Ladle chutney into hot jars to 1 cm (½ inch) headspace. Use a non-metallic utensil to remove air bubbles, adjust headspace, wipe rims, centre sealing discs and tighten bands fingertip-tight.
- Ensure jars are covered by at least 2.5 cm (1 inch) of water. Bring the canner to a full rolling boil, then process for 10 minutes only at elevations up to 1,000 ft (305 m), as specified by Bernardin. The cited recipe does not provide higher-altitude times; do not guess or use this process above that elevation without applicable tested guidance.
- When processing ends, remove the canner lid, wait 5 minutes, then lift jars upright without tilting. Cool undisturbed for 24 hours and do not retighten bands. Check seals; refrigerate any unsealed jar. Store sealed jars cool and dark and refrigerate after opening.
Storage
Cool, dark storage for properly processed sealed jars; refrigerate after opening or if unsealed · The source recommends use within 1 year for best quality; this is not a safety guarantee
Sources and scope
- Orange Rhubarb Chutney — Bernardin Home Canning
Exact recipe, ingredient quantities, jar size, headspace, 10-minute process up to 1,000 ft, cooling, seal check and best-quality guidance. No higher-altitude schedule is provided.