Coffee Engine


Coffee Engine

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The spinning brass flywheel is powered by the heat from any mug of hot liquid.
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Origin Germany
Material Brass, Metal, Acrylic

Every coffee drinker knows a strong brew is essentially liquid fuel but did you know that a cup of joe can literally power a machine? This extraordinary Coffee Engine is a scientific wonder based on a patent from 1816. But what was originally designed to rival the steam engine in locomotives has been reimagined to fit atop a ceramic mug.

The temperature differential between the hot liquid below and the cool air above is enough to drive the steel pistons of the machine, which sets the gleaming brass flywheel spinning—a delightful demonstration of how thermal energy can be converted into motion.

The construction of the Coffee Engine is precise and beautiful, while the action of the components is absolutely fascinating. However, we recommend preparing two cups of coffee, one to power the engine, and one to drink while you sit back and enjoy the marvelous mechanism in motion.

Coffee Cup not included.

Shipping & Returns

Our products ship through a privately owned climate-controlled warehouse in San Diego, California.

We offer a variety of shipping methods from budget-friendly to price-doesn’t-matter. You can compare estimated costs and transit times once you begin the checkout process and enter your shipping address. Carrier options may vary based on your destination.

We strive to pack and ship all items within 24 hours of each order (Monday through Friday). However, we are a small team so during peak holiday season we kindly ask that you allow 3-5 days for your items to be sent on their way. Every box shipped from Art of Play is expertly packed by actual human beings (you can see their names written on your package slip). Everyone in our warehouse is paid a fair wage and treated with respect.

Return Policy

We will gladly offer a refund or store credit in exchange for any items returned within 30 days of the original order, as long as the items are still sealed in new condition. We cannot accept returns of opened or used items. Return shipping is the responsibility of the customer.


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