Portable coffee equipment brand Wacaco has launched Prestina, a manual immersion coffee brewer.

The Hong Kong-based company said the patented brewer replaces the traditional piston mechanism with the cup itself. The device is hand-powered and uses an integrated stainless steel filter, removing the need for paper filters or capsules.

Prestina is designed for use with 15g of medium-gound coffee and 240ml of water at around 90°C. Users stirs the coffee, leave it to infuse for one minute and then press down with the cup until brewing is complete.

The six-piece kit includes the brewer body, portafilter, cup, lid, spoon and drip tray. When packed, the brewer and cup nest into one unit measuring 134 x 85 x 85mm and weighing 254g.

Hugo Cailleton, co-founder and chief designer at Wacaco, said: “With Prestina, we wanted to strip manual brewing back to its most essential form. The breakthrough was realising the cup did not have to be separate from the brewing mechanism – it could become part of it."

"That allowed us to create something simpler, smaller and easier to use, without losing the richness people expect from an immersion brew."

Prestina is available in Sage Green, Clay Pink and Coal Black, with a retail price of $29.90. It is sold through Wacaco’s website, select online marketplaces and the company’s global retail partners.