Question 1

What is borosilicate glass and why is it better?

Accepted Answer

Borosilicate 3.3 is the same glass used in scientific laboratories. It withstands temperature swings up to 300°C, weighs 40% less than regular glass of the same thickness.

Question 2

What glass thickness should I choose?

Accepted Answer

5 mm — compact pieces. 7 mm — the sweet spot: sturdy and not too heavy. 9 mm — maximum durability. If you're unsure, go with 7 mm.

Question 3

Which percolator type is best?

Accepted Answer

Honeycomb — maximum filtration. Tree — classic balance. Matrix — ideal for concentrates. Showerhead — easiest to clean.

Question 4

How do I properly clean borosilicate pieces?

Accepted Answer

Isopropyl alcohol (90%+) with coarse salt. Shake vigorously for 2–3 minutes, rinse with warm water.

Question 5

How can I verify lab-grade quality?

Accepted Answer

Every piece is certified borosilicate 3.3 meeting ISO 3585. Expansion coefficient 33 COE, minimum thickness 5 mm.

Question 6

How is my order packaged?

Accepted Answer

Plain brown box with no logos. Multi-layer foam protection. Bank statement shows "Ougrumant OÜ". Complete privacy.

Question 7

How much does shipping cost?

Accepted Answer

Omniva — €4.99 (1–2 days). DPD — €6.99 (2–3 days). Courier — €9.99 (1–2 days). Free shipping over €50.

Question 8

What if my item arrives damaged?

Accepted Answer

Photograph the damage and packaging, contact us within 48 hours. We review each case individually.

Question 9

Do you ship outside Estonia?

Accepted Answer

Yes. Latvia and Lithuania via DPD (2–3 days). Finland on request.

Question 10

How fast will my order arrive?

Accepted Answer

Orders before 2:00 PM ship same day. Omniva 1–2 days. DPD 2–3 days.

Question 11

What payment methods do you accept?

Accepted Answer

SEPA bank transfer. SSL encryption, secure connection.

Question 12

Is it safe to pay online?

Accepted Answer

Absolutely. SSL encryption across the entire site. Payment via secure SEPA bank transfer — payment details are never stored on our servers.

Question 13

What's your return policy?

Accepted Answer

Returns within 14 days of receipt. Item must be unused and in original packaging. Contact us to arrange a return.

Question 14

Is it legal to buy glass pieces in Estonia?

Accepted Answer

Yes. Borosilicate glass products are fully legal in Estonia and the EU.

Frequently AskedQuestions

Still have questions?