What's Your Yarn Made Of?

A New Series on Fibre, Environment, and Making Informed Choices

So...you're choosing yarn for a new project. You're thinking about the colour, the gauge, the length, how it'll feel against your skin. You're stroking the yarn, or putting it against your face, or scrolling through our online listings, comparing options.

But perhaps you are also wondering:

Yarn choices

What's the environmental story behind this yarn?

Maybe you've seen headlines about methane from sheep, or microplastics from synthetic fibres, or water pollution from textile processing. Maybe a fellow knitter mentioned it in a group or you've been chatting to one of us in the shop. Maybe it's just that you'd like to understand your craft a little better - not just what you're making, but what you're making it with.

We've asked the same questions. As a yarn and fabric shop, we handle dozens of different fibres every day. We understand that different people value them for a range of reasons: the warmth and breathability of wool, the softness of alpaca, the drape of linen, the cheapness of acrylic. But we wanted to look in more depth and find out the real environmental impact of these fibres. What we have found is fascinating - and much more complicated than you might expect.

As a yarn shop, we handle all sorts of different fibres every day

Why I'm Writing This Series

As you may know, my background is in environmental science so these questions are right up my street. But I don't think this sort of information is the preserve of experts, I believe that the more we all understand about where our yarn comes from and what happens to it along the way, the better choices we can make - whether that's me as a shop owner or you as a consumer.

So I've spent time reading, researching, and asking questions. And now I want to share what I've found with you - not as a lecture, but as a conversation.

Here are a few things that may (or may not) surprise you:

🧶 Not all carbon emissions are equal. The methane from sheep is part of a completely different carbon cycle to the CO₂ from fossil fuels — and that changes the environmental picture for wool dramatically.

🧶 Acrylic yarn sheds hundreds of thousands of microplastic particles every time you wash it. Those particles end up in oceans, in soil, in fish, and they hang around for centuries.

🧶 The "greenest" fibre can still have a heavy footprint because the processing stage (turning raw material into yarn you can knit/crochet/weave with) is where a huge proportion of the environmental impact lies, regardless of the fibre.

🧶 There's no single "best" answer. Every fibre has trade-offs. The most sustainable yarn depends on the full picture: how it's grown, how it's processed, how long it lasts, what happens when you're done with it, and even what energy source the mill uses.

What This Series Is (And What It Isn't)

This is an exploration, not a verdict.

I'm not going to tell you what to buy. I'm not going to rank fibres from "good" to "bad." And I'm not going to tell you what you "must" use.

What I am going to do is lay out what I've learned, as clearly and honestly as I can, so that you have the information to make whatever choices feel right for you, your projects, your budget, and your values.

At The Snail of Happiness, here in Lampeter, we think informed crafters are empowered crafters. Knowledge is power and we can all do with more verified facts in the world. I've done the research so you don't have to.

What's Coming Up

Here's the plan for the series. I'm aiming to publish a new post every month, but bear with me if the timing slips! Here's what I have in mind, but it may change as specific questions crop up:

Post 1: The Environmental Footprint of Wool. It's Complicated

Looking at the main environmental concerns around wool production: greenhouse gases, water pollution, pesticides, and land use. Spoiler: it's not a simple story.

Post 2: Not All Carbon Is Created Equal. The Cycle That Changes Everything

This is the one that might surprise you the most. You'll find out why the methane from a sheep and the CO₂ from a petrochemical plant are fundamentally different, and why that matters for how we think about wool.

Post 3: Wool vs. Acrylic. The Real Comparison

The big showdown. A look at fossil carbon, microplastics, biodegradability, longevity, and end of life. The answer isn't what the simple numbers suggest.

Post 4: Beyond Wool. Cotton, Linen, Hemp, Alpaca, and Other Natural Alternatives

A fibre-by-fibre look at the alternatives, including how they actually workup (because yarn sustainability means nothing if you hate working with it).

Post 5: From Fibre to Yarn. The Hidden Environmental Cost of Processing

The bit almost nobody talks about. Scouring, spinning, dyeing: where the real energy and pollution hotspots are.

Post 6: Making Choices You Feel Good About — A Practical Guide

Bringing it all together with a simple, positive, no-judgement guide to choosing sustainable yarn for your projects.

We Want to Hear From You

This is a conversation, not a broadcast. We'd love to know:

• What questions do you have about yarn and the environment?

• Have you already started making fibre choices based on sustainability?

• Are there specific yarns or fibres you'd like us to cover?

Drop us a comment below, send us a message on Facebook, or chat to us next time you're in the shop. Your questions and thoughts will help shape this series.

One Last Thing

We want to be upfront: we sell yarn. We sell British wool and cotton, we sell some sock yarn that includes nylon, we sell recycled yarn and we sell pre-loved yarn of all sorts. We're not pretending to be neutral: we have a business to run and we stock yarns that we like.

We also believe that being honest about the environmental impact of what we sell is the right thing to do. We'd rather have the conversation openly than pretend the questions don't exist.

So let's figure this outlook at some facts and have a conversation. First post coming soon.