![Black Wormhole Tool](http://edobarista.co.uk/cdn/shop/products/620326__19027.1534873167_1445x.jpg?v=1647608798)
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Wormhole Tools
The Wormhole is a coffee dosing ring which ensures you collect all your ground coffee in your filter - and reduces waste and mess. The different colours indicate the different arrangement of magnets at the base of the ring - which each influence the taste of your espresso.