Glazen filtertips
Joint filters
van Hemper
Whether you prefer 7mm or 10mm filter tips, elevate your rolling game with reusable Glass Filter Tips from Hemper. Made from heat-resistant borosilicate glass, you’ll never have to worry about burning or melting these filter tips. Instead, you can simply remove them, give them a quick clean, and they’re ready to roll all over again. When unrivalled smoothness is a must, look no further.
Hemper Glass Filter Tips are reusable borosilicate glass mouthpieces that replace disposable cardboard roaches in hand-rolled joints. Available in 7 mm and 10 mm diameters, they deliver a smoother, cooler draw with zero paper taste — and you can wash and reuse them indefinitely.
Why Glass Filter Tips Beat Cardboard
Cardboard roaches do the bare minimum — they stop herb from reaching your lips and give you something to hold. Glass tips do that and more. The smooth bore creates unrestricted airflow, meaning you get a fuller draw without the turbulence that a rolled cardboard tube creates. The glass doesn't absorb moisture or flavour, so every session tastes like the herb, not the filter.
Borosilicate is the same glass used in laboratory equipment and high-end bongs. It handles heat without cracking, doesn't release chemicals when warm, and survives being dropped onto most surfaces (though it's glass — don't test it on concrete). The 7 mm fits standard rolling papers and pre-rolled cones. The 10 mm works better with wider rolls, blunts, or anyone who prefers a more open draw.
How to Use and Clean Glass Filter Tips
Roll your joint around the glass tip the same way you'd roll around a cardboard roach — tuck the paper around the tip and seal normally. The tip sits flush with the end of the joint. After smoking, remove the glass tip, let it cool for a minute, and rinse with isopropyl alcohol or warm soapy water. A pipe cleaner through the bore removes any residue. Dry it, and it's ready for the next session. Most users report getting hundreds of uses before any visible wear.
Glass vs Cardboard — Quick Comparison
| Feature | Glass Tip | Cardboard Roach |
|---|---|---|
| Airflow | Smooth, unrestricted bore | Turbulent, depends on roll quality |
| Taste | Pure herb flavour, no paper taste | Slight paper/cardboard taste |
| Reusable | Yes — hundreds of uses | No — single use |
| Cost per use | Fractions of a cent after 20+ uses | €0.01-0.05 per roach |
| Comfort | Flat mouthpiece, comfortable grip | Tends to soften and collapse |
Frequently Asked Questions
Are glass filter tips better for joints?
Yes. Glass tips deliver smoother airflow, eliminate paper taste, and don't soften or collapse during a session. They're reusable and heat-resistant borosilicate glass, so they last hundreds of sessions.
Do glass filter tips reduce the potency of a joint?
No. Glass tips filter particulate matter like ash and plant material, not cannabinoids. Your joint is just as potent with a glass tip — the smoke is simply cleaner.
How do you clean glass filter tips?
Rinse with isopropyl alcohol or warm soapy water after each use. Run a pipe cleaner through the bore to remove residue. Let it dry before the next session. Takes about 30 seconds.
What size glass tip should I get — 7 mm or 10 mm?
7 mm fits standard rolling papers and pre-rolled cones — it's the most popular size. 10 mm is better for wider rolls, blunts, or if you prefer a more open draw.
Can you reuse glass filter tips?
Yes, indefinitely. Borosilicate glass doesn't degrade with heat or cleaning. Most users get hundreds of sessions from a single tip. The €9.99 cost pays for itself quickly compared to buying disposable tips.
Last updated: April 2026
