Graduated Caffeine Science Beaker Mug

A 16 oz (450 mL) functional beaker mug made from transparent borosilicate glass — measuring 14 cm in height and 8 cm in base diameter, weighing 320 g. Volume calibrations are permanently etched and accurate to ±2 mL up to the 400 mL line; total usable capacity extends to 500 mL. The mug features a seamless, heat-dissipating handle formed as part of the glass body — ensuring durability and secure handling. The caffeine molecule is depicted with chemically correct connectivity and spatial orientation — positioned centrally for visibility and legibility. No inks, decals, or coatings are used; the design is intrinsic to the glass surface. This ensures zero fading, peeling, or toxicity concerns — meeting expectations for food-contact safety and longevity. Intended for real-world application: ideal for portion-controlled coffee brewing, tracking hydration alongside caffeine intake, or illustrating concentration concepts in secondary or tertiary education. Fully compatible with dishwashers, microwaves, and freezer storage. Delivered in a compact, recyclable gift box with foam insert — designed for protection, presentation, and ease of fulfilment in B2B or direct-to-consumer channels.