How to Use Zerowaste Dental Floss Refills
By MeLuna USA | Published: 2026-10-27
Category: How-to Guides
Learn how to replace the empty spool in your Zerowaste Dental Floss Container and keep your plastic-free floss routine going.
Quick Answer
Refilling your Zerowaste Dental Floss Container is simple: open the glass jar, swap the empty spool for a new one, and thread the floss through the stainless steel lid cutter.
Why Refilling Matters
Using refills instead of buying a new container each time reduces plastic waste and saves money. The Zerowaste system is designed for repeated use, so you only replace the floss spool.
The mulberry silk floss is biodegradable, and the refill spools come in PLA bags made from plant-based lactic acid, making the whole process more eco-friendly.
Step-by-Step Refill Process
- 1. Remove the Lid: Unscrew the stainless steel lid from the glass container. The lid has a built-in floss cutter, so keep it aside. Check that the cutter edge is clean and free of old floss bits before proceeding.
- 2. Take Out the Empty Spool: Gently lift the empty spool from the container. If the floss is tangled, cut it near the spool to avoid pulling the whole strand. Don't force the spool out; it should slide out easily. If it's stuck, the floss may be caught on the lid.
- 3. Insert the New Refill Spool: Place the new spool into the glass container with the floss end facing outward. Ensure it sits flat and doesn't wobble. The spool is designed to fit snugly, but if it's too loose, the floss may unwind unevenly.
- 4. Thread the Floss Through the Lid: Pull the floss end through the small hole in the stainless steel lid. Then, guide it across the cutter edge and screw the lid back on. Leave about 2-3 inches of floss outside the lid so you can easily grab it for use. Too short and it's hard to start; too long and it may tangle.
- 5. Test and Adjust Tension: Pull a small length of floss and cut it with the lid cutter. If the floss feels too tight or too loose, adjust by pulling a bit more through the hole. A consistent tension makes flossing easier. If the floss keeps slipping back into the jar, you may need to pull a little more through the hole.
Product Details
- Zerowaste Dental Floss Container & Refills: The container includes one 33-yard spool inside plus a separate refill spool, giving you 66 yards total. You get two spools in one purchase, so you can start using the container immediately and have a backup ready for your first refill.

Zerowaste Dental Floss Container & Refills
