How long does lemon curd last?
Lemon curd needs product- and recipe-specific storage. Bonne Maman jars, King Arthur’s July 2026 refrigerator recipe and NCHFP’s complete canning and freezer recipes have different instructions. The NCHFP period after thawing belongs only to its exact freezer recipe kept refrigerated after thawing.
Quick answer
Bonne Maman guarantees lemon-curd quality for twelve months from production. Use the printed best-if-used-by date and the jar’s storage directions.
Count from production, not purchase or opening. Bonne Maman’s longer guarantee for preserves and jellies does not apply to lemon curd.
Refrigerate with the cap tightly closed. Bonne Maman describes keeping for several weeks but does not guarantee a specific opened period.
After opening, follow the jar’s instructions. “Several weeks” does not supply a fixed number of days.
King Arthur gives up to one refrigerated week in an airtight container for its complete July 2026 recipe, after the specified cooking and chilling method. Its four-hour refrigerator-setting step is not storage life.
Counting from preparation follows the recipe sequence; the source does not separately define that starting event. Follow the full linked recipe, including cooking to 170°F and prompt refrigerator setting.
NCHFP recommends using its correctly processed and sealed canned lemon curd within three to four months for best quality in cool, dark storage. Follow its entire linked tested formula and method, including bottled lemon juice, specified jars and headspace, canner starting conditions, elevation-adjusted processing, cooling and seal checks. Discard if browning or separation develops.
Counting from canning is an interpretation of the method. All formula and preservation conditions must match, and the seal must be intact. Opening ends this canned-storage guidance; it gives no opened keeping period.
NCHFP reports up to one frozen year without quality change for its exact freezer formula and complete preparation, cooling and packing method, followed by immediate freezing. Read and follow the full linked recipe, including its specified freezer containers and headspace.
Counting from immediate freezing after the required preparation is an interpretation of the recipe. Keep it continuously frozen. This period does not apply to commercial jars or the King Arthur recipe.
For its exact freezer recipe only, NCHFP directs thawing in a refrigerator at 40°F or below for 24 hours before use and consuming within four weeks after thawing. Keep the thawed curd refrigerated; FDA separately gives 40°F or below as the household refrigerator target.
Count the four weeks after thawing only for curd prepared, cooled, packed and immediately frozen by the complete linked NCHFP formula and method. Continue refrigeration after thawing. This gives no four-week allowance for freshly made curd, another recipe or a commercial jar.
Use the actual product label or an exact tested recipe. These sources do not establish one refrigerated keeping period for every commercial or homemade curd, or for home-canned curd after opening.
A production-based guarantee, unopened canning period or NCHFP freezer-recipe instruction cannot be transferred to a different product or recipe.
Why guidance varies
Production, opening, preparation, canning, immediate freezing and thawing are different starting events. A quality guarantee for a sealed commercial jar or correctly canned curd does not establish an opened allowance. A keeping instruction is not automatically a safety guarantee.
Match the product state, storage conditions and source clock above. This guide does not provide an automatic expiry timer.
Frequently asked questions
Can I use jam rules for lemon curd?
No. Egg-and-butter lemon curd has its own product and recipe conditions. Jam guidance does not supply a keeping period for it.
Does putting my refrigerator curd in a jar make it shelf-stable?
No. Only the complete tested NCHFP canning formula and preservation method support its unopened canned-curd guidance. Follow the linked method exactly, including bottled lemon juice and all processing and seal checks. Cooking another recipe and filling a jar does not qualify.
Sources for this answer
- A U.S. Food and Drug Administration — Are You Storing Food Safely? — General household guidance on prompt refrigeration, appliance temperatures, following labels and discarding suspicious food. These temperatures are separate from maker-specific storage recommendations; normal appearance, smell or flavor cannot establish safety.
- B Bonne Maman — FAQ Bonne Maman USA — Bonne Maman US provides a production-based unopened lemon-curd quality guarantee and tightly closed refrigerated handling after opening, with qualitative rather than a guaranteed numerical opened period.
- B King Arthur Baking — Lemon Curd — King Arthur’s July 2026 Lemon Curd recipe supplies its complete cooking/chilling method and airtight refrigerator instruction. Its setting step is distinct from storage; the keeping endpoint is not explicitly classified as quality-only.
- A National Center for Home Food Preservation / University of Georgia — Lemon Curd, Canned — Complete NCHFP Lemon Curd, Canned formula and preservation method, including bottled lemon juice, processing conditions and seal checks. Conditional cool, dark storage quality guidance and its browning/separation discard instruction belong only to this correctly prepared, unopened curd.
- A National Center for Home Food Preservation / University of Georgia — Lemon Curd, Freezer — Complete NCHFP Lemon Curd, Freezer formula, preparation, cooling, packing and immediate-freeze method. Its frozen quality guidance and refrigerator-thaw/consumption instructions belong only to this exact recipe; they do not apply to arbitrary fresh curd or commercial jars.