How Do You Know What Care a Handknit Needs?
Check the yarn label. Every label includes care symbols that tell you exactly how to wash, dry, and iron that fiber. If you've lost the label, identify the fiber type (the burn test or feel test from the WPI guide works) and follow the care rules for that fiber.
The golden rule: when in doubt, hand wash cold and lay flat to dry. This method is safe for every fiber. You can always be more cautious than the label suggests, just not less.
How Do You Wash Different Fibers?
Superwash Wool and Superwash Blends
Machine wash: Gentle/delicate cycle, cold or warm water (up to 86°F/30°C). Use a mesh laundry bag for extra protection.
Machine dry: Low heat or tumble dry low. Superwash can handle it, but the heat may cause gradual shape changes over many cycles. Laying flat to dry extends the life of the garment.
Detergent: Use a wool-safe detergent (Eucalan, Soak, or Kookaburra). Regular detergent works in a pinch, but avoid anything with enzymes or bleach.
Untreated Wool (Non-Superwash)
Hand wash ONLY. Fill a basin with cool water (65-75°F). Add a drop of wool wash. Submerge the item without agitating. Soak for 15-20 minutes. Gently press out water without wringing or twisting. Never put untreated wool in a washing machine, even on gentle.
Dry flat. Roll in a clean towel to remove excess water, then lay flat on a blocking mat or dry towel. Reshape to correct dimensions while damp.
What causes felting: Hot water + agitation. The scales on wool fibers lock together permanently when exposed to heat and friction. A single accidental hot wash will felt an untreated wool garment beyond repair. There's no un-felting.
Acrylic
Machine wash: Any cycle, any temperature. Acrylic is the most forgiving fiber. It won't felt, shrink, or bleed.
Machine dry: Low to medium heat. High heat can cause acrylic to lose its shape or develop a slightly crunchy texture over time. Some crafters avoid the dryer to keep acrylic items softer.
Note: Acrylic can "kill" (permanently set the drape) in high heat. This is sometimes intentional for lace blocking but undesirable for most garments.
Cotton and Linen
Machine wash: Gentle cycle, warm or cool water. Cotton can shrink 5-10% on first wash if not pre-washed. Linen softens with each wash.
Machine dry: Low heat or air dry. Cotton tolerates dryers better than wool but may shrink slightly. Linen wrinkles more when machine dried.
Tip: Wash cotton items before gifting or wearing so the recipient gets the post-shrinkage size.
Silk and Silk Blends
Hand wash in cool water with a gentle detergent. Silk is sensitive to heat, agitation, and alkaline detergents. Don't wring. Press gently between towels.
Dry flat away from direct sunlight. Sunlight can fade silk.
Alpaca
Hand wash in cool water. Alpaca behaves like wool but doesn't felt as aggressively. It does stretch when wet, so handle carefully and reshape while drying. Never hang wet alpaca; it will stretch irreversibly.
How Does the FiberTools Blocking Calculator Help?
The Blocking Calculator recommends the right washing and blocking method for your specific fiber type. Enter your fiber content, and the tool shows:
- Whether to wet block, steam block, or spray block - Safe temperature ranges - Stretch feasibility (how much the fiber can stretch during blocking) - Step-by-step instructions
After every wash, handknits benefit from a light re-blocking. The Blocking Calculator reminds you which method to use so you don't have to remember the rules for each fiber.
How Do You Dry Handknits Safely?
Lay flat to dry. This is the safest method for every fiber. Place the item on a clean towel or blocking mat. Reshape to the correct dimensions. Flip after 12 hours to dry both sides evenly.
Never hang wet knits. Gravity stretches wet fabric, especially wool and alpaca. A sweater hung to dry can gain 3-6 inches in length. Lay flat or use a drying rack with a mesh surface that supports the full width.
Speed up drying. Place the item on a dry towel, roll the towel up tightly, and press or step on it to absorb water. Unroll, move to a fresh dry towel, and lay flat. A fan pointed at the item cuts drying time in half.
Machine drying rules: - Superwash wool: low heat, remove promptly - Acrylic: low to medium heat - Cotton: low heat (may shrink) - Untreated wool: NEVER - Silk: NEVER - Alpaca: NEVER
What Are Common Care Mistakes?
Felting a non-superwash wool item. The #1 handknit disaster. It happens when someone doesn't check the fiber and tosses it in a regular hot wash. Prevention: attach a care tag to every handmade gift. Write or print washing instructions and tie them to the item with scrap yarn.
Using fabric softener. Fabric softener coats fibers and reduces moisture absorption. It makes wool feel slimy and acrylic feel waxy. Skip it entirely for handknits. Wool wash products like Eucalan or Soak leave a light conditioning agent without the coating.
Wringing or twisting. Wringing stretches wet fibers and can permanently distort the shape. Gently squeeze or press, but never twist.
Washing too frequently. Wool is naturally odor-resistant and antimicrobial. A wool sweater worn over a base layer only needs washing every 5-10 wears. Airing it out overnight between wears refreshes it without water. Over-washing causes pilling and shortens the garment's life.
Storing folded in drawers without moth protection. Moths eat wool, silk, alpaca, and cashmere. Store natural-fiber items in sealed bags or containers with cedar blocks or lavender sachets. Check stored items every 2-3 months for moth damage.
What Do Real Care Situations Look Like?
The felting disaster. A knitter gave her sister a merino wool cardigan as a gift. No care tag attached. The sister washed it in hot water on a regular cycle. The cardigan felted to child size. The knitter now attaches a printed care tag to every gift with fiber content and washing instructions.
The 10-year blanket. A crocheter made an acrylic throw blanket that's been machine washed and dried weekly for a decade. It pilled in the first year (she shaved the pills with a fabric shaver), but the structure, color, and size are unchanged. Acrylic lasts forever with basic care.
The resurrected cotton sweater. A crocheted cotton cardigan stretched out of shape after washing. The owner laid it flat, pinned it to a blocking mat at the original dimensions, misted it with water, and let it dry pinned for 24 hours. The sweater returned to its original shape. Cotton responds well to re-blocking.
Frequently Asked Questions
Can I machine wash handknit items?
It depends on the fiber. Superwash wool, acrylic, and cotton blends can go in the machine on a gentle cycle. Untreated wool, silk, and alpaca must be hand washed. Check the yarn label for the care symbol. When in doubt, hand wash cold and lay flat to dry, which is safe for all fibers.
How often should I wash handknit sweaters?
Wool sweaters need washing every 5-10 wears if worn over a base layer. Acrylic and cotton items can be washed after every 2-3 wears. Over-washing causes pilling and fiber breakdown. Air out wool overnight between wears to refresh it without water. Spot-clean stains immediately rather than washing the whole garment.
How do I prevent pilling on handknits?
Pilling happens when loose fibers tangle on the fabric surface. It's worse with loosely spun yarns and friction-heavy areas (underarms, sides). Use a fabric shaver or sweater stone to remove pills. Wash inside-out in a mesh bag to reduce friction. Tighter-spun yarns and plied yarns pill less than loosely spun singles.
Should I attach care instructions to handmade gifts?
Yes, always. Write the fiber content, washing method, and drying instructions on a small card. Tie it to the item with scrap yarn or include it in the gift bag. Most recipients won't know how to care for handmade items. A care tag prevents felting disasters and extends the life of your gift.
Care for Your Handmade Pieces
Every handmade item deserves proper care. The fiber determines the rules. Wash gently, dry flat, store smart, and your handknits will last decades.
Check the Blocking Calculator for fiber-specific blocking and care instructions. Enter your fiber type and get the right method every time.