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Step 1: Identify your weighted blanket type (this changes everything)

Before you do anything, check the care label and confirm the construction:

1. Duvet-style weighted blanket (removable cover)
   This is the easiest to maintain. You usually wash the cover frequently and wash the inner blanket only occasionally.
2. Bead-filled weighted blanket (glass or plastic beads)
   Often quilted into small pockets. Washable in some cases, but weight and agitation are concerns.
3. Knitted weighted blanket / chunky knit weighted blanket
   These are woven or knitted from thick yarn and get their weight from the knit structure and material density (not loose beads). They’re breathable and stylish, but can stretch if washed improperly.

Step 2: Know the “can my washer handle it?” rule

Even if the label says machine washable, the main limitation is weight when wet. A wet weighted blanket can become much heavier than its listed weight.

General guidance:

• If your blanket is 10–15 lb, many home washers can manage (depending on drum size).
• If it’s 20 lb+, it’s often safer to use a large-capacity washer at a laundromat or consider hand washing/spot cleaning.

If your washer struggles, it can damage the motor—or fail to rinse detergent fully, leaving the blanket stiff.

How to wash a standard weighted blanket (bead-filled)

If the label allows machine washing:

1. Use cold or lukewarm water (hot water can shrink fabric and weaken seams).
2. Choose gentle/delicate cycle to reduce stress on stitching.
3. Use a mild detergent, no bleach, no fabric softener (softener can coat fibers and trap odors).
4. Rinse thoroughly—a second rinse helps remove detergent residue.
5. Dry low and slow: tumble dry low if permitted, or air dry flat.

Pro tip: If your weighted blanket has a removable cover, wash the cover regularly and wash the inner blanket less often—this extends the blanket’s life significantly.

How to wash a knitted weighted blanket or chunky knit weighted blanket

A knitted weighted blanket (especially a chunky knit weighted blanket) needs extra care because the knit loops can stretch, snag, or lose shape.

Best practice:

• Spot clean first for small stains (mild soap + cool water, blot—don’t rub hard).
• If machine washing is allowed, use:
  • Cold water
  • Delicate cycle
  • Mesh laundry bag (if it fits) to reduce pulling
• Never wring the blanket. Wringing distorts the knit structure.

Drying knitted styles:

• Air dry flat on a clean towel or drying rack, reshaping the blanket gently.
• Avoid hanging by one edge (it can stretch lengthwise).
• Avoid high heat (heat can weaken fibers, especially if blended yarns are used).

If your chunky knit blanket is made from wool or wool blends, consider professional dry cleaning unless the label explicitly says washable.

What about odors, sweat, and pet hair?

• Odor refresh: sprinkle a light layer of baking soda, let sit 30–60 minutes, then vacuum gently (knitted blankets) or shake out (standard blankets).
• Pet hair: use a lint roller or a rubber pet-hair remover before washing to keep your washer filter cleaner.
• Disinfecting: avoid harsh chemicals; instead rely on proper washing + complete drying. Sunlight during air drying can help freshen naturally.

Bottom line

To wash a weighted blanket, the safest method depends on the construction: bead-filled blankets can often be machine washed gently if your washer capacity allows, while a knitted weighted blanket or chunky knit weighted blanket should be handled with minimal agitation and usually air dried flat to prevent stretching.