FAQ
Short answers about materials, sizing, care and small-batch releases.
What is the best glass tip size for beginners?
For most people, 9 mm or 10 mm is the best starting point. These sizes are balanced, versatile, and easy to adapt to different formats.
What size are 78 Glass filters?
Most 78 Glass filters are made between 6 mm and 14 mm in external diameter. The standard length is 30 mm ±1 mm.
What does the diameter mean?
The diameter listed on the product page is the **external diameter** of the glass filter.
Are smaller glass filters better?
Smaller filters are better if you want a compact and minimal format. They are not automatically better or worse — they simply create a different feel.
Are larger glass filters harder to use?
Larger filters are more specific. They create a bigger format and are usually best for people who already know they prefer a more substantial piece.
What is the difference between straight and tapered glass filters?
Straight filters have a more even diameter and create a cleaner cylindrical format. Tapered filters are slightly conical and can change the structure and feel of the final piece.
What size should I buy first?
If you want one piece, start with 9 mm or 10 mm. If you want a more practical first order, choose two sizes such as 8 mm and 10 mm, or a three-size starter pack.
What is the best way to clean a reusable glass tip?
The best method is cleaning alcohol, gentle shaking, water rinsing, and full drying. If the buildup is fresh, the process can take less than a few minutes.
What kind of alcohol should I use?
A suitable cleaning alcohol, ideally 80% or higher, works best. Isopropyl alcohol is commonly used for cleaning glass. Always follow the label instructions.
Do I need salt?
No. Salt is not necessary for 78 Glass filters. The internal openings are small, so alcohol and shaking are usually more effective than abrasion.
Can I use the included storage tube for cleaning?
Yes, the storage tube can be used for quick shake-cleaning. Add alcohol, close it securely, shake gently, then rinse both the glass and the tube. For long soaking, a small glass jar may be more convenient.
Should I rinse after alcohol?
Yes. Rinsing is important because alcohol can carry dissolved buildup. If it dries on the glass, it may leave a film behind.
Can I use hot water?
Yes, warm or hot water can help soften stubborn buildup before alcohol cleaning. Be careful with hot water and avoid burns.
Can I boil the glass tip?
Boiling is usually not necessary. Borosilicate glass handles heat well, but hot water is normally enough. Boiling can also make the container dirty and unpleasant to clean.
Can I heat it with a torch?
No. Do not use a torch for cleaning. It is unnecessary and can create avoidable risk.
Does it need to be dry before storage?
Yes. Let both the glass tip and the storage tube dry completely before closing and storing.
Do I need to clean the glass tip before first use?
Usually, no. Each piece is checked and packed after finishing. You can rinse it if you prefer, but it is not normally required.