Black Tea Coaster


Black Tea Coaster


By Dust London

Our latest homeware collection transforms tea waste into elegant objects using a unique process we have developed in the studio. We make the coaster moulds using traditional origami techniques. We begin with a sheet of paper; scoring, folding and pinching to create the desired form. A key part of this technique is balancing the tension between the curved facets. We then reinforce the paper and work through a series of steps to create a robust and seamless silicone mould. Preparing the coaster object for making the mould is a key part of the process to make sure we achieve a smooth surface texture on the finished pieces.

We collect the chamomile tea bags, thoroughly dry them out and blend them so that they are ready to mix with a non-toxic binder.  After much experimentation, we settled on jesmonite as our binding material. A key process in the making to ensure the strength and surface finish of our coasters is balancing the ratios of the chamomile tea waste to the binding material. Once we have achieved the desired consistency, the material is ready to pour.

Working with tea waste allows us to do two things; the first is to create a range of natural pigments and subtle textures in the coasters we create. The second is to raise awareness of the way materials are conventionally used and to challenge the perception of what sustainable design can be. A coaster set made from tea waste paves the way for those conversations happen. As a nation of tea drinkers, we find that people can relate.

We are working with an organic material which can produce slight variations in the surface finish of our coasters. We celebrate the fact that each object we cast is unique and ask our online customers to bear this in mind when purchasing from photographs.


6mm tall x 100mm long x 100mm wide

cork base dimensions

2mm tall x 85mm long x 85mm wide


500g approx.

(set of 4 coasters)


Black tea waste with jesmonite binder; an eco-friendly waterbased fine cement-like material which has no VOC's, and is UV stable. The coasters are sealed with 2 layers of penetrating sealer and finished with a polish to give a subtle sheen.


100% hand made in Dust London's London Studio by Michael and Matthew


A cork base to prevent scratching. The cork is sealed for moisture protection and branded with the 'Dust London' logo using a traditional fire-heated branding iron.


Packaged in a self-locking corrugated card board box with jiffy foam protectors between coasters. 

Dispatch time

We aim to keep stock of all products, however all of our pieces are individually handmade, so stock levels do fluctuate. We will ship your item 2-3 days after your order, and if we cannot we will let you know, at time of purchase.

Shipping time

After dispatch:

UK : 2-3 days.

Europe: 6-8 days.

Rest of world: 8-10days

*The above times are an estimate and may take a shortehr or longer amount of time.

Shipping prices

For 1  Coaster Set (4x coasters):

£4 within UK, £9  within europe, £14 to the rest of the World.

*Prices will be different if ordered with other products.

Customs duties, taxes and charges

These are the responsibility of the buyer.

Product care

All of Dust London’s objects are made from organic materials so we have taken steps to protect them. We have applied certified sealing products to guard against surface marks. Each coaster has been coated with 2 layers of penetrating sealer, which is absorbed into the pores, and a surface sealer, which gives a thin physical barrier on the top of the coaster.

Our sealing process can only go so far in preventing marks from appearing on the surface of the coasters. We recommend removing liquids/dirt from the surface with a damp cloth as soon as they appear to ensure they are not absorbed into the coasters.

We ask that you take care of the coasters as we cannot provide refunds or replacements if marks appear.

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