Pecans are rich in oil, so cold storage keeps them fresh longer, but in-shell pecans do fine in a cool pantry. Below: where each form belongs, how long it lasts there, and which source each figure comes from.

Do pecans need to be refrigerated?

The short answer: Not always, but cold storage lasts longer. In-shell pecans keep 6 to 12 months in a cool, dry place per the National Pecan Shellers Association. Shelled pecans keep about nine months in the refrigerator and up to two years in the freezer, and about 2 months in a pantry for halves per one grower. Diamond of California recommends refrigerating tree nuts after opening.

For a complete pantry storage reference, see our Food Storage Guide. Planning to bake? Try our pumpkin pecan muffins or maple pecan pie bars.

Which Pecans Need the Fridge?

Start with the form you have, because in-shell and shelled pecans need different care. These are grower, extension and maker recommendations, not guarantees.

Do In-Shell Pecans Need to Be Refrigerated?

No, in-shell pecans don’t have to be refrigerated. The National Pecan Shellers Association’s storage tips page says in-shell pecans can be stored in a cool, dry place for six to 12 months. New Mexico State University’s Storing Pecans guide says in-shell pecans can be stored at room temperature for a short period, and that they remain good about 4 months at 70°F.

The fridge or freezer extends that. NMSU says 18 months at 32°F to 36°F, and 5 years or more at 0°F. UGA Extension’s Storing Pecans post says in-shell nuts generally decline in quality more slowly than shelled ones. If you won’t use them within a year, move them to the freezer.

Do Shelled Pecans Need to Be Refrigerated?

Shelled pecans are the ones to chill. Priester’s Pecans’ storage tips page says refrigeration is the best way to keep a pecan’s color, aroma and flavor over long stretches. It credits a Georgia Experiment Station table that gives about 2 months in a pantry (70 to 80°F) for halves, 9 months in the refrigerator (38 to 40°F) and 2 years in the freezer (0°F). For pieces, the same table gives 1, 5 and 12 months. NMSU’s own table gives shelled pecans 3 months at 70°F, 6 months at 47 to 50°F and 12 months at 32 to 36°F.

Diamond of California’s non-retail products page recommends refrigerating its products after opening. Its page covers tree nuts in general, not pecans alone. It says keeping tree nuts cold helps prevent off flavors and rancidity. We’d let a sealed, unopened bag from a store wait on a cool shelf for a short time, but an opened bag belongs in the cold.

The National Center for Home Food Preservation’s nutmeats post (November 2014) says nuts store very well when dried and kept in airtight containers in a cool location. It gives a year at 32 to 45°F, and 1 to 3 years at 0°F depending on the type of nut.

Is It Better to Refrigerate or Freeze Pecans?

The freezer is better for long storage, and we’d use the refrigerator for shelled pecans you’ll use within about nine months, based on NPSA and Priester’s (which gives 5 months for pieces).

K-State Research and Extension’s nut storage story (December 2022) quotes horticulturist Ward Upham saying shelled or unshelled nuts should be kept in the refrigerator, but the freezer is best. He says they can be stored in a freezer up to one year, and that using them within six months is preferred. The story covers nuts in general.

Pecan sources lean toward the freezer for long storage. Priester’s says experiments show a slight loss in quality under refrigeration, while pecans suffer no damage from freezing. NPSA says pecans can be thawed and refrozen repeatedly during a two-year freezing period without loss of flavor or texture.

UGA Extension differs on texture. It says that pecans become more dry and brittle the longer they are kept at freezing temperatures. NPSA and Priester’s report no loss, so weigh how long you plan to store them. We’d use the refrigerator for shelled pecans you’ll use within about nine months.

How Should You Store Pecans in the Refrigerator?

Use an airtight container. NPSA says airtight containers, such as jars with lids, are best for the refrigerator. K-State recommends a solid plastic container with a tightly fitted lid or a heavy-grade resealable bag. NMSU says pecan kernels may be kept in the refrigerator in a covered glass jar or in plastic bags.

The sources give different temperatures because they cover different settings. NMSU gives 32 to 36°F for in-shell pecans. UGA Extension gives 32 to 34°F at 65% relative humidity. Pecan South magazine’s shelled pecan storage article (February 2026) describes a University of Georgia study that stored shelled pecans at 8, 23 or 32°C, and recommends about 8°C (about 46°F) when possible. It didn’t test colder refrigerator or freezer settings. Diamond gives 45 to 55°F for tree nuts, at 55 to 65% relative humidity. NCHFP says refrigerated nuts at 32 to 45°F maintain quality for a year.

We found no pecan source that says the refrigerator must be a particular temperature, and we found no source on the door versus a shelf. A home refrigerator set between 32 and 40°F falls inside NCHFP’s 32 to 45°F range, and we’d use a main shelf, which is steadier than the door.

Keep them tightly sealed and away from strong-smelling foods. NMSU says pecan meats absorb odors and flavors readily, and UGA Extension says they may absorb flavors and odors from other stored materials. Hudson Pecan Company says to store its pecans alone.

How Should You Freeze Pecans?

Seal pecans in freezer bags and freeze them for up to two years, per NPSA.

NPSA says to use sealed plastic bags for the freezer, with up to two years of storage and no thawing necessary. It says pecans can be thawed and refrozen repeatedly during that period, and that after removal from cold storage they stay good for an additional two months. We treat that as approximate quality guidance, not a reset of the pecans’ age. Priester’s says pecans can be refrozen again and again without adverse effect on quality or texture. NMSU adds that moisture can condense on kernels moved quickly into warm air, and it prefers a series of gradually increasing temperatures. If you’ll use them at room temperature, we’d let the sealed bag warm before opening it.

K-State gives a shorter freezer window of up to one year. For long-term freezing, we’d use a heavy bag with the air pressed out, and label the date. Whole pies are different. NCHFP says frozen pecan pies stored at 0°F are expected to last 3 to 4 months.

What Can You Make With Refrigerated or Frozen Pecans?

Pecans from the refrigerator or freezer are ready for the oven. NPSA says no thawing is necessary for frozen pecans, so you can pour them straight into a batter. Our pumpkin pecan muffins and keto pumpkin pecan muffins are an easy start, our maple pecan pie bars are made without corn syrup, and the strawberry pecan salad works when you want something lighter. For loaves where you could add chopped pecans, see our pumpkin spice bread and banana bread.

Baking also means checking the rest of the pantry. For the maple bars, see whether maple syrup goes bad and whether maple syrup needs to be refrigerated. Most baking calls for butter, covered in whether butter goes bad. Serving pie after the holiday? See whether pumpkin pie needs to be refrigerated and our maple pumpkin pie.

How Long Can Pecans Sit Out?

About 2 months for shelled halves and 1 month for pieces in a pantry, per Priester’s.

Shelled pecans last about 2 months in a pantry (70 to 80°F) for halves and 1 month for pieces, per Priester’s, and NMSU’s table gives shelled pecans 3 months at 70°F. Pecan South reports acceptable quality for several months at 23°C (about 73°F) but rising deterioration risk, and rapid quality loss at 32°C (about 90°F). So we’d leave a bowl on the counter during baking season for a short time, but not in a hot kitchen or a warm garage.

After pecans come out of the freezer or refrigerator, NPSA says they stay good for an additional two months, which we treat as approximate quality guidance. We found no source on pecans left out for a single night. Pantry guidance for plain pecans runs in months, so we’d treat a night on the counter as a small part of that. That reasoning doesn’t cover dishes made with perishable ingredients, and we’d return plain pecans to the cold when you’re done.

Do Roasted Pecans Need to Be Refrigerated?

Hudson Pecan Company’s roasted pecans page says its roasted and salted Georgia pecans are best if used by 6 months. It says that once opened they can be refrigerated for 12 to 18 months and frozen for up to 2 years. It adds that pecans have a high oil content and could absorb odors when stored with other items. That is one maker’s claim. Hudson Pecan Company’s Praline Pecans page gives the same 12 to 18 months refrigerated once opened for its Praline Pecans. Candied and coated pecans vary by recipe, and we found no extension source, so go by your package.

How We Checked This
In October 2026 we read the National Pecan Shellers Association’s storage tips page, New Mexico State University’s Storing Pecans guide (revised 2005) and the UGA Extension pecan team’s Storing Pecans post. We read the National Center for Home Food Preservation’s posts on nutmeats and K-State Research and Extension’s nut storage story. We read Pecan South magazine’s 2026 article on shelled pecan storage, Priester’s Pecans’ storage tips, Diamond of California’s non-retail products page and Hudson Pecan Company’s roasted and Praline Pecans pages. We also read the USDA grade standards for shelled pecans and FDA’s mycotoxins page. We could not reach USDA’s FoodKeeper data, so we don’t cite it. Where we found no source we say so, and our own suggestions say so plainly, with wording like we’d or we suggest. This article is general information, not medical advice.

Do Pecans Need to Be Refrigerated FAQ

Further Reading