How-to: Felted Wool Mason Jar Cozy

felted wool Mason jar cozy (3 of 3)

Need a crafty green way to upcycle an old wool sweater? Here’s how to make a wool sweater Mason jar cozy, to help keep your hot drinks hot and your cold drinks cold and leave your precious hand the perfect hand temperature while you drink.

1. Felt a wool sweater. Here’s how to felt a wool sweater in washing machine.

To this original tutorial, I’d add that some wool sweaters can give off a LOT of fibers as they felt, so these days I do a quick clean-out of my washing machine outlet screen-thingy after I felt a load of wool sweaters. That being said, I’ve never had a problem with a clogged washing machine, even when I didn’t do this. But our plumbing is so half-hearted that I figure better safe than sorry…

NOTE: If you prefer to avoid crafting with wool, check out this recycled felt koozie project–it’s easily modified to fit a Mason jar.

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Written by Julie Finn

I'm a writer, crafter, Zombie Preparedness Planner, and homeschooling momma of two kids who will hopefully someday transition into using their genius for good, not the evil machinations and mess-making in which they currently indulge. I'm interested in recycling and nature crafts, food security, STEM education, and the DIY lifestyle, however it's manifested--making myself some underwear out of T-shirts? Done it. Teaching myself guitar? Doing it right now.

Visit my blog Craft Knife for a peek at our very weird handmade homeschool life, and my etsy shop Pumpkin+Bear for a truly odd number of rainbow-themed beeswax pretties.

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  1. Although I splurged and bought myself a super awesome water bottle, I really need to do this. I love my mason jars as drinking vessels. And, I only own 2 “coffee” mugs, so I could use more glasses for tea.

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