St Pierre du Bois

Here we want to introduce you to and give you information about how Vraic is used. Some you may well be familiar with and others may be new to you (such as replacing poisonous by products in farmed salmon food by using seaweed). The thatched cottage in the picture is from Denmark and seaweed has been used to weatherproof it. vraicthatch

vraic uses

    • Usage of Vraic can be braodly categorised into
    1. Medicinal
    2. Therapy/cosmetic
    3. Food
    4. Agriculture


    But there are several other applications - it can be used to remove heavy metals from soil and other materials, it can even be used to roof a house. The picture shows an old thatched cottage in Denmark with a seaweed roof


United Nations about Vraic

an Abstract from a United Nations Food and Agriculture Organisation occasional technical paper on the Seaweed industry the full document can be viewed here




The traditional use for Vraic in the Islands has been for conditioning the soil. It has been burned for fuel but also burned to concentrate the potash for fertilisation.

Part of the aim of this Floral St Peter's Vraic site is to encourage more use of Vraic. It is a natural and organic fertiliser which is credited with bestowing good taste and strong roots on your horticultural specimens 


EAT ME!!   

You often get a response when suggesting the unusual 'well the Chinese did that thousands of years ago' The use of Vraic in cooking is widespread amongst almost all the earth's  peoples who have settled within a few miles of the ocean. Although cooking with seaweed is most prominent in Asia. Most of us probably know that the dark green wrapper in sushi is seaweed - or more accurately Nori - which the Japanese cultivate, but did you know that this form of kelp is pretty much the same as Laver found in Wales and the basis of Welsh Laver Bread? 
There are numerous articles and links to recipes here which should whet your appetite. Indeed there's some as say it is a cure all

Now we're sure you've heard of a seaweed wrap or a seaweed bath in the context of beauty/therapy spas.

Well such processes are centuries old and grounded in sound experience.

Yes Vraic can do you good


We will try to present you some articles and links which will explain more


Vraic has long been used for fuel - 

in coastal communities it would often be dried and burned - however it is a moot point whether this was to deliver the potash but obviously in poorer times and communities you do not waste heat, so vraic may have been burned like peat. In the petro chemical age burning peat for warmth seems nonsensical - burning seaweed, several times more so. First it was discovered to be easier to hunt whales and make oil that way then black gold arrived extracted with even less effort. So now we have an environmental conscience and scientists are continuing to push the boundaries, can seaweed provide fuel?

This has been tried in many ways such as  mimicking the extraction of sugars from land grown plants.  A major project in Chile was shut down within the last decade because the process appeared to be uneconomic. Since then oil prices have risen and then tumbled making North Sea oil almost uneconomic despite sunk investment.

The future for extracting bio fuel from seaweed looks bleak but at least the scientists  are still trying.  

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