Is it borosilicate glass?

Yes, it is Borosilicate glass, can tolerant to repeated heating and cooling, it meets the industry-standard for chemistry use.

Is this mug sturdy and heavy enough for daily use? Or is it more a novelty mug for occasional use?

If say more novelty..BUT I've had a few of these for years. If you are careful with them they last just as long as any glassware. If you're a goon and a moron then it will break easily

How tall is this mug? I'm curious if it will fit under the espresso spouts of my machine.

Dimensions ( H x W ): 4.5" x 5.5"( including handle ).

What is the diameter of the opening?

I haven't measured them, but I can tell you they're definitely larger diameter than almost all of the rest of my mugs (which are 10-oz) vs. this one at 16 ounces. That isn't necessarily bad; depends on your preference. But bigger? Definitely.

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Caffeine Beaker Mug, Caffeine Molecule Mug - Chemistry Mug 16 oz Borosilicate Glass Coffee Mugs with Handle and Measuring for Coffee, Latte, Tea or Hot and Cold Beverage - Tea Coffee Mug

Caffeine Beaker Mug, Caffeine Molecule Mug - Chemistry Mug 16 oz Borosilicate Glass Coffee Mugs with Handle and Measuring for Coffee, Latte, Tea or Hot and Cold Beverage - Tea Coffee Mug

Product ID: 71589761

Details

Brand
Homazing
Capacity
16 fluid
Color
1
Material
Borosilicate
Special Feature
Microwave Safe

📏Dual metric & standard measuring scale

🔥Microwave safe with ergonomic handle

⚗️16 oz lab-grade borosilicate glass

₩44763

Duties & taxes included

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Sold byAmazon South KoreaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚗️ Sip smart, measure sharp — your daily dose of caffeine, perfected.

SCIENCE INSPIRED STYLE - Show off your inner chemist and spark conversations with a mug that’s as smart as you are.
GENEROUS 16 OZ CAPACITY - Fuel your hustle with a large cup that keeps you powered through back-to-back meetings.
LAB PRECISION MEASURING - Say goodbye to guesswork with clear, dual-scale markings for perfect pours every time.
ERGONOMIC COMFORT HANDLE - Designed for a secure grip, so you can sip confidently during those marathon work sessions.
DURABLE BOROSILICATE GLASS - Crafted from heat-resistant, crystal-clear glass that’s as tough as your deadlines.

This 16 oz Caffeine Beaker Mug combines lab-grade borosilicate glass with precise dual-scale measuring for an elevated coffee or tea experience. Microwave safe and ergonomically designed, it’s perfect for professionals who value both style and function. Ideal as a gift for science enthusiasts or anyone who appreciates a smart, stylish mug that keeps pace with a busy lifestyle.

Specifications

ASIN	B07F46LJ2H
Age Range Description	Adult
Best Sellers Rank	#41,009 in Kitchen & Dining ( See Top 100 in Kitchen & Dining ) #214 in Mugs
Brand Name	Homazing
Capacity	16 fluid ounces
Color	1
Customer Package Type	FFP
Customer Reviews	4.5 4.5 out of 5 stars (2,597)
Included Components	NO
Item Dimensions W x H	5.5"W x 4.5"H
Item Type Name	02000
Item Weight	6.4 ounces
Manufacturer	Alysontech
Manufacturer Part Number	DVK111
Material Features	Microwave Safe
Material Type	Borosilicate Glass
Material Type Free	Free of materials other than glass
Model Number	10002
Number of Items	1
Occasion	Anniversary, Birthday, Graduation
Other Special Features of the Product	Microwave Safe
Pattern	Solid
Product Care Instructions	Hand Wash Only
Product Style	Modern
Recommended Uses For Product	Home
Reusability	Reusable
Shape	Round with Handle
Size	16 Ounces
Specific Uses For Product	Cold Drinks, Hot Drinks
Theme	Science
UPC	787477986029
Unit Count	1 Count

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