Demi-Johns & Carboys
Demi Johns and Carboys are designed as a secondary fermentation vessel, allowing you to ferment wines over a long period and helps prevent infection from airborne bacteria.
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The difference between a Demi-John and a Carboy is size. Carboys are much bigger and hold more liquid than Demi-Johns.
Demi Johns and Carboys are designed as a secondary fermentation vessel.
The initial fermentation should be completed in a larger vessel such as a brewing bucket. This is because the initial fermentation is very vigorous and gives off a lot of carbon dioxide. The carbon dioxide helps prevent infection, but this can cause a large amount of foam on top of the fermenting liquid. If the initial fermentation is performed in a demi-john or a carboy, you risk the airlock becoming blocked by the foam, when can then lead to the possibility of an explosive eruption and a lot of cleaning up.
Once the initial fermentation slows, less carbon dioxide is given off. This means there is more chance of infection. This is the time to syphon your fermentation into a vessel with a smaller neck with an airlock such as a demi-john or a carboy.
The Demi-John or Carboy allows you to ferment wines over a long period and helps prevent infection from airborne bacteria.
Demi-Johns and Carboys are not designed to hold a carbonated liquid, so a solid bung for long term bulk ageing should only be fitted if you are sure the fermentation has completed. For security, a safety cork or airlock should be fitted.
Let customers speak for us
from 372 reviews
We have purchased this wine kit numerous times. We have always had a good quality pack of wine. Presented chilled this wine is as good as any shop wine.
Always ready to drink within a couple of weeks .

Quite simply add this .
You will have the fermenter foaming all over the floor and walls but you will have the real quality that you want .
Made fruit wines of all types for years and on some as a hobby , had a go last year base level wine kit and so so ,a bit sweet ok if you only want to get well oiled . But this added to a kit is wow for a nearly sixty year old wine drinker just try adding half the bottle to your next 30 bottle kit you will never go back.

Very good works a treat.makes the wine look professional and attractive to the coinesseur.

I made my first ever wine, blackberry wine using this bag after following David on his Youtube video, great product, less mess and easy to use. Thank you David for your help and support with my order.

Easy kit to brew. Pleasant, very refreshing apple flavour ideal for lazy summer days in the sun. Very impressed and intend to try others in this range.👍

Excellent value for money, quick and reliable service.

I have used this main times for different brews, beer and wine and have had great results and will use again.

First time brewing kit was awesome tastes great I will be buying again very easy to drink

This o ring set fits our wilko presure barrel easy order quick shipping
works well

Fermentation began quickly but remains steady during the process. I like this product.

Having just sampled my first brew of Coopers Stout I really enjoyed it.
It still needs to age some more to get to its best, but so far so good.
I fermented this with 1.5Kg Muntons Dark Malt Extract, and use Safale US-05 yeast and added Pure Brews Water treatment/Yeast Nutrient as per instructions.
It has worked well in a pressure barrel. Packed full of flavour - a really nice stout. Admittedly it is no longer the Coopers Beer Kit straight from the can, but we have all these ingredients to hand, so why not not enhance your beer to suit your tastes. Happy brewing.
Keith B

Once again received my order in good condition. Will definitely order again , already steeped in gin and looking forward to the end result.
Will recommend to friends and definitely order from you again
Thanks again
Teresa

I've just used these new screw on caps for threaded wine bottles, and so far I reckon they are great. Just fill the bottle with your latest creation, put the cap on top, give it a whack down and screw tight. Saves loads of time and does not leak. Definitely will use these again.

Nice and solid. Remembered to vaseline the joints before connecting.

This is the first time I have made a wine buddy kit and I must say, this is a good quality, tasty wine. I will definitely be making another very soon.
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