How To · Fashion · Outfit Formulas
Store Seasonal Knits Without the Damage
Seasonal storage doesn't have to mean sacrificing your favorite knits to moths and mildew. These five steps will keep your sweaters, cardigans, and pullovers in pristine condition until you need them again.
5 min read · IrisThe moment you pack away your winter sweaters or linen cardigans, they become vulnerable. Temperature swings, humidity, and hungry moths can undo months of careful wearing in a single season. The difference between a sweater that emerges wrinkled and one that emerges intact comes down to three things: cleanliness, containment, and climate control.
You don't need expensive archival supplies or a climate-controlled closet to do this right. What you need is intention—and about twenty minutes of your time before the season changes.
A sweater stored dirty is a sweater inviting moths, mildew, and permanent odors.
Step one · 3 minutes
Wash or refresh each piece
Before storage, every knit must be clean. Wash delicates in cool water with a gentle detergent designed for wool or synthetics, depending on fiber content. If a sweater has been worn only a few times, a light refresh in the washing machine on delicate or hand-wash cycle is sufficient. For pieces that haven't been worn but have been sitting in your closet, treat them the same way. Dirt and body oils are moth magnets—this step is non-negotiable.
Air dry flat on a clean towel. Never hang wet knits; the weight will stretch them permanently.
Step two · 2 minutes
Dry completely and inspect
Ensure every piece is bone dry before packing—any residual moisture invites mildew and mold. Lay sweaters flat on a clean, dry towel in a well-ventilated space for 24–48 hours. While drying, inspect each item for pilling, loose seams, or stains you may have missed. This is the moment to address any damage before storage, not after.
If you notice pilling, use a fabric comb or sweater stone gently to remove it. Don't use a razor blade; it damages fibers.
Step three · 5 minutes
Fold strategically, never hang
Fold each sweater lengthwise, then in thirds or quarters depending on size. Place heavier knits on the bottom of your storage container and lighter pieces on top. Hanging knits stretches the shoulders and neckline over time—folding is always the right choice for long-term storage. If you're stacking multiple sweaters, place acid-free tissue paper between layers to prevent friction and color transfer.
For bulky cable-knit sweaters, fold once and lay them flat rather than creating multiple creases that can become permanent.
Step four · 3 minutes
Choose the right container
Use a plastic storage box with a tight-fitting lid—not cardboard, which absorbs moisture and attracts insects. Clear plastic allows you to see contents without opening the box repeatedly. Avoid cedar chests for fine knits; cedar oil can stain delicate fibers. Instead, place cedar blocks or lavender sachets inside the plastic container. The sealed environment keeps moths out while allowing air circulation.
Label your container with contents and storage date. You'll be grateful next season when you remember exactly what's inside.
Step five · 2 minutes
Store in a cool, dry, dark place
Location matters as much as preparation. Choose a closet, under-bed storage, or cabinet away from direct sunlight, heat sources, and damp areas like basements. Fluctuating temperatures and humidity are knitwear's enemies. A climate-controlled bedroom closet is ideal; an unheated attic or damp garage is not. Check on your stored knits every few months, especially in spring and fall when moth activity peaks.
If you notice any musty smell when you open the container, remove the contents immediately and air them out. Replace the cedar blocks or sachets.
Step six · 5 minutes
Refresh before wearing again
When you retrieve your stored knits, don't wear them straight from the box. Lay them flat for a few hours to allow any compression wrinkles to release naturally. If wrinkles persist, use a steamer on low heat held several inches away from the fabric—never press directly with an iron. A light mist of fabric refresher can help eliminate any storage odors. Try on each piece to ensure nothing has shifted or stretched during storage.
If a sweater smells stale after storage, hang it in fresh air for a few hours rather than reaching for the washing machine immediately.
How to know your knits are properly stored.
When you open your storage container next season, your sweaters should emerge wrinkle-free, odor-free, and exactly as you left them. No moth holes, no pilling, no stretched necklines, and no musty smell. If this is what you find, your storage method worked.
Questions at the mirror.
What if I find a moth hole in stored knits?
Remove the affected piece immediately and isolate it from other garments. Check all nearby items for damage. Wash the damaged piece in hot water if the fiber allows, then freeze it for 48 hours to kill any remaining larvae. For delicate fibers that can't handle hot water, professional dry cleaning is your safest option. Small holes can sometimes be invisibly mended by a skilled tailor.
Can I use mothballs instead of cedar?
Mothballs work, but they leave a chemical smell that's difficult to remove from knits and can linger on skin. Cedar blocks and lavender sachets are equally effective at deterring moths without the odor problem. If you prefer mothballs, use them in a separate sealed bag within the storage container so the smell doesn't transfer directly to sweaters.
How often should I check on stored knits?
Check every 6–8 weeks, especially during peak moth season (spring and fall). A quick visual inspection takes 30 seconds and can catch problems before they spread. If you live in a humid climate, check more frequently and consider adding a silica gel packet to absorb excess moisture.
Is it okay to store knits in vacuum bags?
Avoid vacuum-sealed bags for long-term storage. While they save space, the compression can create permanent creases and weaken fibers over time. Plastic storage boxes with lids offer better protection without the damage risk.