Expanded cork granules supplier

When expanded cork boards are initially produced in autoclaves with a size of 1000x500x300mm, sometimes the natural resin that binds the granules together has a fault line in it and the block will break. The same can happen when these large blocks are cut to size to make boards. So this expanded cork cannot be used to make boards, so … Read More

Expanded cork vs coarse granule cork insulation board

There are two great options for cork insulation boards that have some different properties as well as a different appearance, but both offer a natural way of providing acoustic and thermal insulation. The traditional solution is expanded cork, which is 100% natural and is made by super-heating cork granules which forces them to expand and release their resin, which then … Read More

Used port wine barrels for sale

We receive a number of requests from distillers looking for used port wine barrels and other refurbished fortified wine barrels, such as used sherry barrels. Whilst we do carry a reasonable stock, we do have a reasonably fast turnover so we can never be exactly sure what we will have available. Typically we have refurbished 225, 250 and 500 litre … Read More

How cork production sequesters CO2

Cork are made from the bark of the cork oak tree (known in Portugal as the “Sobreiro”). It takes 25 years from the germination of an acorn to the first harvest of cork bark after which the bark regenerates and can be harvested every 9 years. The beauty of this whole process is that the tree does not need to … Read More

Expanded cork furniture

Expanded cork is one of natures miracle products. It is made by granulating resin rich cork bark that cannot be used for wine corks. This cork is granulated and then pressure and steam are applied, which make the granules expand and release the resin, which acts as a natural binding agent to make blocks of cork. This expanded cork is … Read More

How cork is harvested

Here is a short video showing how cork is harvested. Note that cork is made from the bark of the cork oak tree (“Sobreiro” in Portuguese) – this is a unique tree that will regenerate its bark after is has been stripped off, so no tree are chopped down in the production of cork. These cork oaks can survive 200 … Read More

Cork memo board supplier

We supply cork memo boards (as well as white boards and chalk boards), generally in 3 sizes: 30x40cm, 40x60cm and 60x90cm, with a wooden frame. Our standard is to supply the memo boards with shrink wrap and pins included and we can add customer labels if required. For the cork memo boards there are two options – double side cork … Read More

1+1 technical corks supplier

5 years ago, 1+1 corks (also known as technical corks) were extremely popular in the market, but in more recent years they have been increasingly substituted by micro-agglomerated corks, which in our opinion is a shame for wine producers and wine drinkers and this is why: a 1+1 cork is made from an agglomerated cork body with a natural cork … Read More

Natural wine corks vs. screwcaps for decent wine


John Gilman writes the highly regarded wine newsletter View from the Cellar and it was great to hear the bile he had to direct at the overuse of screwcaps in the Australian wine industry in particular. In a piece he wrote for the celebrated blog, Dr.Vino , he expressed his mystification about why any wine really worth drinking that was … Read More

Use natural cork, save a bird

Here is a video about how important it is to preserve the natural cork forests of Portugal and Spain, a unique habitat for wildlife. The easiest way to do this is to do what we are learning to do in so many areas of our life and choose natural over synthetic – so when you next buy a bottle of … Read More

Buy cork direct from Portugal


Something like 70% of the world’s cork comes from Portugal and given the worldwide connectivity that the internet gives us and very competitive international transportation rates, it makes sense to consider buying your cork direct from Portugal and not from a national distributor from your country. Here at CorkLink we run a low-cost business model, for three reasons: – our … Read More

Cork powder / cork dust supplier

Cork dust or cork powder is produced when corks are ground down to size using grinding stones, which results in a very fine powder, which has a variety of uses. It can be used to produce colmated corks, where the dust is used to patch up imperfections in the surface of lower quality natural corks and is also used in … Read More

Cork granules densities

We supply cork granules direct from our facilities in Portugal to customers all round the world. We regularly get asked about the options for different densities and the reasons that costs vary so much for different densities, so here is an explanation. It is useful to understand how cork granules are made: cork bark is peeled off the cork oak … Read More

The confusing world of natural wine cork classification


Natural cork has a confusing system of different qualities, which could be a lot more simple, but unfortunately isn’t! The basic classification system for natural wine corks or natural capsulated (bar-top) corks starts with the very best corks “Flor”, which should have no surface imperfections, just the occasional visible line, then it goes down to Extra, then Super, then First, … Read More

Agglomerated & natural options for conical corks

We supply a complete range of conical corks sizes direct from Portugal, from size 000 (6.3/4.0 x 12.7mm) up to very large conical corks with a diameter of 20cm+. We can also do custom sizes and conical corks with holes or even one piece bar-top style corks as shown in the photo: You can see here the normal finish options … Read More

Cork best for wines and best for the environment


Here is a film about why natural cork from Portugal is the best solution for bottling wine both in terms of its quality as a sealant and the environmental benefits. The cork oak forests of Portugal are among the most biologically rich on earth and harvesting the cork only requires the bark being stripped – the trees live on! Plastic … Read More

Aluminium and plastic closures vs cork: the environmental battle


A study was carried out a few years ago by PriceWaterhouseCoopers to look at the environmental impact of different wine closures, considering cork, aluminium and plastic options. What they looked at was the lifecycle of each type of closure to work out the cost to the environment of 1,000 closures, in terms of energy, water consumption, air pollution and solid waste. … Read More

Little Kit Company custom conical corks

At CorkLink we are just as proud to serve our small customers as our large ones and one of our smaller customers who keeps coming back for more corks is The Little Kit Company, which makes mini wine making kits (and they are really mini – one bottle at a time!). Kirstyn Holgate came up with the idea and runs … Read More

Skilled production of natural wine corks disappearing

Not so long ago, all corks were what are now termed natural, that is punched out of the cork bark by a skilled worker with a punching machine and a lot of patience (see photo below). Sadly these natural wine corks are gradually being replaced by agglomerated corks, which are far easier to make and do not require anything like … Read More

Storage of cork stoppers

bar-top corks

We receive a lot of questions about how cork stoppers should be stored once they have been received by clients. The most important thing is that once you have received your cork stoppers from your supplier, you should use them to bottle your wine or whatever within around 6 months. After this time the surface treatment (generally silicone or paraffin) … Read More

Natural cork stopper or screw cap?


Here at CorkLink of course we love natural cork – what is there not to like? It comes from sustainable forests where the trees are not cut down to harvest the cork bark, the product is beautiful in the way that only natural wood can be, it is the only way to allow wine to age in the bottle and … Read More

Natural cork balls supplier

We supply natural cork balls in sizes of 8, 10, 16, 18, 20 and 25mm (and agglomerated cork balls in these sizes and larger). Natural cork balls are in fact very difficult to produce in high quality, as they need to be worked delicately and also need to be made from good quality natural cork in order to not have … Read More

Sourcing cork from Portugal


There are not many industries that Portugal can claim to be the world leader in, but cork is one of them. In fact around 70% of the world’s cork is exported out of Portugal and for quality natural cork stoppers, the figure is over 95%. So if you are buying cork from within your own country, the chances are that … Read More

Cork or screw cap – which is best for your wine?


It will come as no surprise that here are CorkLink we are passionate defenders of using cork to seal wine bottles – after that is a big part of how we make our living! I would like to have a look at some of the arguments that need to be considered when choosing between screw caps or corks. Natural cork … Read More

Used red wine casks (barrels) for sale


We have a stock of 700 used wine casks/barrels 500 litres each in heights of 1.50m and 1.17m available for sale pictured below. Price is €224 each as is. Their condition is not perfect, although we can recondition for them for you if required. They were used for making Portuguese red wine. We also have used port wine barrels for … Read More

Agglomerated or natural corks?


So should you choose agglomerated or natural corks for your stoppers? Assuming that you are not going to use a synthetic option (screw tops or worse still a plastic cork imitation), what are the different characteristics of agglomerated and natural corks? Within the agglomerated cork bracket, you can opt for micro-agglomerated (with 0.5 to 2.0mm granule size) which have the … Read More

Different qualities of natural wine corks


The system of classifying natural wine corks into different quality categories is to say the least a complex one. The key thing to understand is that there is no cross industry standard applied to corks coming out of Portugal (where the vast majority of natural wine corks are produced) and more complicated still, broad quality standards vary considerably from country … Read More

Cork from Portugal – nothing gets thrown away!


Because cork is a natural product that can only be harvested from one kind of oak tree, there is a limited supply. It is also quite expensive to harvest from the trees, as the bark has to be removed by hand. This means that cork is not a cheap raw material! It has unique properties and has a certain beauty … Read More

Expanded cork board prices

Here is our price list for expanded cork board (also known as black cork). The prices are per m2 and some minimum order quantities apply according to thickness. Our products will be delivered direct from the factory in Portugal to your address – we have extremely competitive shipping costs to the UK, northern Europe and beyond, so please ask us … Read More

Natural wine corks classification


Natural wine corks are still used to seal the vast majority of the world’s best wines, because all the other solutions (either synthetic or other cork options, such as micro-agglomerated, normal agglomerated or 1+1 technical corks) do not offer the unique properties that natural cork offers as well as the cosmetic appeal. We are not going to look at which … Read More

Ecorkhotel in Evora with expanded cork external cladding


On top of a haystack, five kilometers from Evora, the Ecorkhotel has been built, with the principal external walls clad in expanded cork. It is a four-star hotel, located in Évora an area rich in cork forests, where the ferocious summer heat can make building insulation a very important factor. The hotel as used the concept of Eco Tourism as … Read More

Tapered / conical corks supplier direct from Portugal


We have been selling a lot of tapered or conical corks recently in both agglomerated and natural cork. Generally we do not work from stock and for orders of the larger conical corks we can make up orders of just 1000. There is a sizing system for conical corks which is detailed below. Generally we can produce an order in … Read More

Screw cap threat drives cork innovation


Five to ten years ago there were various people declaring that the cork industry would be largely consigned to history as screw caps take over from cork stoppers for wine bottles, but in fact over recent years corks have been increasing their share of the market rather than losing it. The truth is that the major players in the cork … Read More

Expanded cork – how it is made


Expanded cork (or black cork) is made from the bark of the cork tree that is of too poor a quality to be used for making natural wine corks. Principally this is from branches that are pruned from cork trees (see photo below), fire damaged cork from forest fires and ‘virgin’ cork (the cork that come from the first harvest … Read More

Agglomerated cork blocks produced using a mould


In recent years there has been a lot of development in using cork agglomerate in innovative ways, by mixing different kinds of corks granules, adding colours, varying the densities and so on. The main way that this is done is to add cork granules and adhesive into a block mould, then to apply pressure. What emerges is a block typically … Read More

Technical / 1+1 corks supplier

1+1 technical corks

1+1 corks are made from an agglomerated cork body with natural cork discs glued on to each end. So natural cork will be displayed to the consumer when about to open the bottle and will also be in contact with the wine in the bottle. Agglomerated cork is a good deal less costly than natural cork, so by just using … Read More

Expanded cork / black cork supplier

Expanded cork was developed in the mid 1990s to provide a 100% natural insulation material, using parts of the cork bark that were not previously used. When the cork oak tree is stripped of its bark, generally only the trunk is stripped and the upper branches are left untouched. The cork bark from the upper branches cannot be used to … Read More

Natural wine cork handling and storage


The production techniques for premium natural corks have been revolutionised in recent years to guarantee negligible levels of contamination and extremely reliable quality control. So if you buy natural corks from a supplier such as CorkLink, you can expect to receive an extremely safe and reliable product. However it is important that once you receive the corks, you should handle … Read More

Choosing a wine cork supplier


Over 70% of the world’s wine corks are made in Portugal and the percentage is quite a lot higher than this for natural corks and other high end corks. If you are looking for a new wine cork supplier, then Portugal is the natural place to look, but choosing a supplier is very difficult. The cork industry structure has changed … Read More

Bar-top or T-Top corks supplier recommendations


We supply a lot of custom Bar-top or T-Top corks (also known as capsulated closures) – we can make most specifications that clients require and we can provide a wide variety of custom options. More and more spirits manufacturers are opting for micro-agglomerated corks, which are fine for non-premium products, but is seems a real shame for premium brands to … Read More