Industrial-scale coffee brewing can use counter-flow heat exchangers to recover pretty much all the heat energy, combined with insulation to prevent losses.

They’ve brewed something (very slowly) that compares well to room temperature espresso? That’s dandy and all, but I wonder how it compares to a proper espresso, after spending additional energy to heat it.

Saving up to 75% of energy by not heating the water is a minor benefit for home users or small coffee shops. But for companies making ready-to-drink coffee products at industrial scale, it could be very significant indeed.

So this is a method to make crap in a bottle or can.

Gotcha.

I’ll stick with the trusty French Press

Edit: …Though I gotta admit it’s pretty dang cool that they figured out a new way to brew coffee using cold water and reduce the energy use of large scale production.

Energy, water use, and pollution of AI and data centers rival most countries