Agitation is actually quite an important part of extraction in many brew methods, from the Aeropess to the plunger. Some experts even recommend stirring your pour-over coffee slurry. While you can do this with lots of tools, metal has the problem that it scratches glass and tears paper filters. Plastic on the other hand avoids these problems, but some believe it's not great to expose certain plastics in hot water, both for flavour and for health reasons.

The Hario Bamboo Stirring Paddle was designed for siphon coffee makers but it's actually an ideal accessory for any coffee maker, especially ones that are made of glass. You can stir vigorously without any risk of flavour taint or scratches. Buy one to use with your immersion coffee maker!

Hario Stirring Paddle Features

• Made of bamboo
• Soft finish
• 25cm total length
• ~2cm wide paddle
• ~1cm wide handle