English Sparkling Wine

English Sparkling Wine made in Hampshire

Having spent the last decade dedicating our energies to making the best English Sparkling Wine we can, using all the viticultural expertise and craftmanship available to us, we want to share a little of what drives us, how our wine-making year runs and a bit about how English Sparkling Wine is made and enjoyed.

Hampshire Vineyard

Coates & Seely took over their Hampshire Vineyard in 2008. There had been a small vineyard in this location, serving the local community for decades. After extensive new planting and the introduction of expert French winemaking craftsmanship the first wine produced, the Blanc de Blanc 2009 Vintage ‘La Perfide’ won numerous awards and gold medals culminating in the 2019 International Wine & Spirit Competition Trophy for the best Bottle Fermented Sparkling Wine.

Since then Coates & Seely have gone on to produce some of the best English Sparkling Wine selected by the sommeliers from some of the greatest restaurants in the world.

The best place to drink English Sparkling Wine

The Grape Harvest

One of the most exciting times of a winemaker’s life is the Harvest. The decision on when to harvest is critical, bearing in mind all the variables. 

Capturing the optimum balance of ripeness and acidity in the grapes whilst looking out for botrytis, a fungus that can harm the grapes, as well as fruit-loving songbirds, is a skill borne of long experience.  

Added to the assessment of the grapes’ readiness is judging the weather and holding your nerve when you see that a frost might be coming or other vineyards in Kent and West Sussex have already started picking but you know that your own grapes aren’t quite ready.

Pinot Noir Harvest
Picking the Grapes

Coates & Seely use both local volunteers and agency pickers for a period of two weeks to pick our grapes by hand.

The quality of the grapes each year will determine how many bottles of English Sparkling Wine are made and whether or not we will make a specific vintage wine for that particular year.

The Coates & Seely winery is at the heart of the vineyard, so our grapes go from vine to bottle within one square mile, ready for dispatch to our clients around the world.

Luxury English Champagne

English Sparkling Wine Production

At Coates & Seely we use the traditional method, our own version of the méthode champenoise – the Méthode Britannique – in our sparkling wine production.

First Fermentation

Once the wine grapes are harvested and pressed, they undergo their First Fermentation. Coates & Seely are unique amongst English Sparkling Winemakers in making use not only of stainless steel tanks but also of concrete fermentation eggs.  The use of the egg shape is relatively novel and allows better convection of the wine while it ferments, giving greater depth and complexity to the flavour.

The quality and size of each year’s harvest will determine which wines are made that year and Coates & Seely’s expert winemakers will blend the optimal combination of the grape varieties for each sparkling wine.  Whether this is White or Rosé, Vintage or Non-Vintage sparkling wine.

The Second Fermentation

The wine is bottled after several months in the eggs and tanks and undergoes its second fermentation in the bottle.   This is where the carbon dioxide is released in the bottle, creating the fizz.  It is important that the bubbles are small and persistent, creating a smooth and sophisticated ‘mousse’.

Wine Ageing

The wine is aged in the bottle depending on the style of wine being made. Our vintage sparkling wines are typically kept ‘on lees’ for five years. We typically keep our non-vintage sparkling wine for two and a half to three years before disgorgement.

The term ‘lees’ refers to the sediment formed in the bottle. The sediment is from the leftover broken down yeast after the sugars are consumed during the fermentation process.  


Riddling is a key part of the age-old method of separating the sediment from the wine. The process involves gradually rotating the bottles while tilting them neck down. The sediment flows to the neck of the bottle.

In traditional Champagne-making, riddling would be painstakingly carried out by hand. Nowadays we have ‘Gyropalette’ machines which can do the same job in a fraction of the time.


After their time on lees, the wine disgorgement process takes place. The necks of the bottles containing the sediment are frozen and the increased pressure forces out the sediment.  

A ‘dosage’ of sugar is added at this point. At Coates & Seely over the past few years our typical dosage levels have varied between 4 and 6 grams per litre.

The dosage used can vary significantly between different sparkling wine varieties in different countries, each having a slightly different palate. 

The bottles are then corked and laid down for further bottle ageing. 

Ingredients in English sparkling winemaking

Sparkling winemaking is an ancient production technique.  Our fine English Sparkling Wine is made very simply from the juice pressed from the Chardonnay, Pinot Noir and Pinot Meunier grapes, the only additions to the grape juice are the yeast to aid fermentation, the dosage of sugar and a minimal amount of fining agent to help the clarity of our wines. 

At Coates & Seely we no longer use isinglass and have moved to a vegan fining agent, so our English Sparkling Wines are now proudly vegan.

Concrete Fermentation Eggs


The reason Hampshire vineyards such as Coates & Seely produce such high quality grapes for the production of sparkling wine is the ‘terroir’ or land on which the vines are grown. The terroir closely reflects the climate, soil and topography of the Champagne region of France.

Hampshire Sparkling Wine

The chalk subsoil provides good drainage but also stores water, so the vines are encouraged to develop deep roots. Drought is not a concern for winemakers on this soil. The chalk imparts a mineral flavour also present in French Champagnes.

The chalk found under the slopes of Hampshire and the North and South Downs extends under the Channel and is similar to that found under many of the various districts of the Champagne region of France. Formed before the last ice age the chalk was laid down in the Late Cretaceous period when Britain was still connected to Continental Europe.

Chalk Champagne Soils
The Vineyard Landscape

Ideally, the vines are grown on the slopes of a south-facing hillside which provides optimum drainage but most importantly the ideal exposure to sunlight. Whilst in Champagne the optimum planting range can be between 200 to 250 metres above sea level, in Southern England the optimal height is more likely to be between 80 to 120 metres above sea level.

The yield of sparkling wine per hectare on our wine estate is considerably less than a typical champagne vineyard due largely to the somewhat different prevailing weather conditions.  However, Coates & Seely’s pursuit of excellence drives us towards deliberately lower yields in our wine craftmanship.

Climate for growing sparkling wine

The climate in Southern England, after the gradual increase in average temperatures over the last 20 years, now corresponds more closely with the temperatures to be found in the region of France known for Sparkling Wine production.

Hampshire Sparkling Wine

Grape Varieties

The planting of our Hampshire vineyard matches a traditional Champagne vineyard, with Chardonnay, Pinot Meunier and Pinot Noir vines. The varieties of grapes are blended differently for each of our wines.


The well-known Chardonnay grape is a white variety and can be used in both still and sparkling wine production.  Chardonnay gives a floral, citrus delicacy and imparts a creaminess to the wine.

Pinot Noir

The Pinot Noir is a distinctively dark black grape.  It gives a depth and complexity to the wine and is very reflective of the terroir and production technique used in the wine-making.  It grows especially well in the chalk subsoil of our terroir. 

Pinot Meunier

Like the Pinot Noir, Meunier is a black grape.  Pinot Meunier helps give the sparkling wine its fruit flavours and is typically the first of the grapes to be harvested.  It is generally more tolerant of the slightly cooler climate and is also, beneficially, generally less susceptible to disease.

Pinot Noir Harvest
Chardonnay Grapes
English Sparkling Brut Reserve

English Sparkling Wine Cuvées

Vintage wines

A vintage wine is one made from grapes from a single harvest.  At Coates & Seely we only make a vintage wine when the fruit is outstanding.  Since we started making wine in 2009 we have had 4 vintage years for English Sparkling Wine.  

In 2009 we produced our first wine, the multi-award and gold medal winning Blanc de Blanc 2009 Vintage ‘La Perfide’, made from 100% Chardonnay. 

We also produced a vintage Rosé 2009 ‘La Perfide’ which won gold medals and trophies and was the highest scoring of all English Sparkling Wines in Robert Parker’s Wine Advocate in 2017.

In 2011 we produced our Brut Reserve 2011 ‘La Perfide’, a blend of Chardonnay and Pinot Noir and winner of Gold Medal and Trophy for Best Classic Cuvée at the UK Wine Awards (2018).  It was released in 2018 in individually numbered magnums.

In 2014 we produced our first vintage Blanc de Noirs – Blanc de Noirs 2014 ‘La Perfide’ – which will be released in 2020.

In 2018 we produced vintage Blanc de Blancs and Blanc de Noirs Sparkling Wines that are currently on lees.

Blanc de Blancs

This is white wine made from white grapes i.e. Chardonnay.  The flavour of a Blanc de Blanc is generally more crisp and mineral.  Our non-vintage Blanc de Blancs won Best Wine in Show and the Best English Sparkling Wine at the London International Trade Fair and the Best English Sparkling Wine at the IWSC Awards in 2016. 

Blanc de Noirs

White wine from Black grapes i.e. Pinot Noir and Pinot Meunier.  The Blanc de Noirs flavour is generally more rounded.

Brut Reserve NV

Our non-vintage brut sparkling wine is blended with reserves of Chardonnay, Pinot Noir and Pinot Meunier from previous years.  It is a Gold Medal winner in the Champagne and Sparkling Wine World Championships.

Rosé NV

The ever popular Rosé Non Vintage is made from Pinot Noir and Pinot Meunier grapes and has won Gold and Silver Medals in numerous international wine competitions.

Coates and Seely's Sparkling Wines

How to serve the perfect glass of sparkling wine


The ideal temperature for serving sparkling wine is between 8 and 12 degrees centigrade. An ice bucket is probably necessary for keeping your bottle cool when enjoying your fizz outside.


The champagne flute or ideally a tulip remain the preferred glass for serving a sparkling wine.  Whilst the coupe or saucer evoke a bygone glamour, the bubbles and aroma will disappear too quickly.  The tulip arguably provides a better experience of the aroma.  

Fill the glass just over half full so that the aroma remains in the neck of the glass.

Magnum or Bottle

The usual bottle size for champagne and sparkling wine is 75 centilitres, however, a magnum, the equivalent of two bottles holds one and a half litres.  Fantastic for larger celebrations and get-togethers, the magnum is very striking.

How long can you keep English Sparkling Wine?

At Coates & Seely we age our non-vintage wines for up to three years, giving them great longevity (5 to 10 years).  Non-vintage sparkling wines will last for less time than vintage wines.  

Our vintage wines are kept on lees for up to 5 years or more and can be expected to last for 10 to 20 years.

How to serve champagne

Tasting Notes

The terminology used to describe wines can seem exaggerated, but when comparing different bottle-fermented sparkling wines, the differences in the key characteristics are noticeable. 

The Colour of the wine

Colour can vary significantly from white, through pale yellows and golds to pale salmon or coral in a rosé. Colour may give an idea to the grape used, but red grapes aren’t only used for red wines. 

Both Pinot Noir and Pinot Meunier are black grapes used in our sparkling white wines.

The Sparkle, or bubbles, in the wine

The size and flow, or stream, of the bubbles as they pour and appear in the glass is known as the ‘mousse’.  It is best if the bubbles are small and persistent, giving rise to a mousse that is fine, creamy, pale and elegant.

For example C&S Blanc de Blanc La Perfide 2009 was described to have a “clean silvery stream of bubbles” by the IWSC judges.

The Aroma of the wine

The aroma of wine comes from the grapes used and the process of winemaking. The aroma can be talked of in terms of fruit flavours and floral notes. Examples include; rose petal, redcurrant, soft summer red fruits, peaches, blossom, apple, citrus or hazelnut.

Particular to sparkling wine is the ‘toast’ or ‘biscuit’ flavour it imparts, induced primarily by the autolytic process of the wine lying on its lees. It may seem a strange description, but a quick visit to the bottling room at Coates & Seely winery gives the most uplifting reassurance of this flavour.

While you may wish to swirl a still wine in the glass to release the aroma, a glass of sparkling wine should be treated more gently so as not to lose the sparkle. 

The Characteristics of the wine

The characteristics of sparkling wine are harder to discern than through observing the colour or smelling the aroma.  The collection of the taste sensations a wine gives can be variable giving layers of flavour and further description of the undertone and the finish.

The Coates & Seely expert winemakers will undertake to find the perfect balance of sweetness and acidity peculiar to the chalk soils of the region.

Tasting Notes Blanc de Blanc
Tasting Notes Sparkling Rosé
Tasting Notes English Sparkling Brut
Food Pairing Sparkling Wine