Skip to product information
1 of 1

Tapered Demijohn & Bottle Cork, 35mm/ 30mm

Tapered Demijohn & Bottle Cork, 35mm/ 30mm

Regular price £5.99
Regular price Sale price £5.99
Sale Sold out

  • 30mm at the base, 35mm at the top: a tapered cork bung for a suitably sized demijohn, carboy or bottle neck. The 38mm height and two end diameters help you compare it with your glassware or an existing stopper before choosing.
  • Buy one or keep spares: select 1, 2, 4, 6, 8 or 10 bungs. Each option contains the same 30/35mm size, making it straightforward to replace a single missing stopper or buy for several matching containers.
  • A tapered fit, not a universal size: check the internal opening, neck shape and depth. The narrow end goes in first and the wider top should remain accessible for removal; vessel capacity alone cannot tell you which cork fits.
  • Solid cork construction: the agglomerated cork body has no drilled airlock hole. Only the selected number of bungs is supplied; glassware and brewing accessories are separate. Use a suitable drilled bung and airlock arrangement for active fermentation.
View full details

Description

Find the cork that matches your neck

Keep your demijohn or bottle in use with a replacement stopper chosen by its dimensions. This 30/35mm tapered cork bung has a 30mm small end, a 35mm top and an overall height of 38mm.

The labelled photo shows the dimensions to compare with your glassware. Its textured body is made from agglomerated cork, with a solid, undrilled top.

Choose 1, 2, 4, 6, 8 or 10 bungs. All are the same size; the pack option changes the quantity supplied.

Actual tapered cork with labelled 35mm top 30mm base and 38mm height
30mm baseSmall end enters first
35mm topWider end for a grip
38mm tallCheck your neck depth
1-10 bungsSix quantity choices
Illustrative fit of a tapered cork in a glass demijohn neck supported by one hand
Illustrative fit in a matching neck. Glassware is not included.

Measure the opening before choosing a pack

A demijohn's capacity does not define its stopper size. Measure the inside of the neck, check its shape and depth, and compare with an old cork that fitted well if you have one.

The two stated diameters describe the cork ends, rather than promising a fit in every opening between 30mm and 35mm. The small end needs to enter and the taper should seat with enough cork above the rim to hold. Position it gently; do not force it into glass.

A single bung replaces one missing stopper, while the multipacks give you the same size for matching containers. For a mixed set of bottles, check each opening rather than assuming they all take one cork.

Choosing and using your cork bung

What is in each pack?

The selected number of 30/35mm cork bungs: 1, 2, 4, 6, 8 or 10. Every bung is the same size and 38mm tall. Glassware, measuring tools and airlocks are not supplied.

Does 30/35mm mean it fits every neck in that range?

No. Those are the small- and large-end diameters of the cork. Fit also depends on the neck shape and depth, how the taper seats and leaving enough cork above the rim for removal.

Can I put an airlock through it?

This bung is supplied solid and undrilled. Use an appropriate drilled bung and airlock for active fermentation; a solid stopper is not a substitute for that arrangement. No pressure rating is specified for this product.

Product information & technical details

SKUBUNG35/30001
Product typeTapered Cork
Width30mm - 35mm
ColourBrown
MaterialCork
Small-end diameter30mm
Large-end diameter35mm
Overall height38mm
ConstructionTapered agglomerated cork
Pack quantities1, 2, 4, 6, 8 or 10 of the same size
Airlock holeNone: solid, undrilled bung

All delivery times are estimates and not guaranteed. Orders placed before 1 pm, Monday to Friday (excluding bank holidays), will be dispatched the same day, while orders placed after 1 pm will be dispatched by the end of the next working day.

If an invalid postcode or address is provided, the order will be cancelled without further notice, as we are unable to modify addresses or print labels for invalid postcodes.

Our standard delivery option is Royal Mail Tracked 48, which typically takes 3–5 business days. If you need your order more quickly, Expedited delivery via Royal Mail Tracked 24 is available, offering a 1–2 business day service.

Large or bulky items may be sent via courier at our discretion and are usually dispatched for next-day delivery. Please note that we only ship to mainland UK addresses; delivery to non-mainland locations, including the Highlands & Islands, may not be available for large or heavy items. If your address falls into one of these areas and you wish to purchase such items, please contact us with your postcode and order details before placing your order. If we cannot ship to you, you are welcome to arrange your own courier for collection.

Please see our shipping policy for further information.

All products, unless otherwise stated, come with a standard manufacturer warranty against faulty workmanship.

If your product fails within six months of delivery, please contact us with your order reference number, a description of the issue, and clear images illustrating the fault.

Should your item require a return for further investigation, it is your responsibility to arrange and cover postage back to us.

If we are unable to repair the fault, we may offer either a replacement or a full refund.

In cases where the item is inspected and found not to be faulty, or where damage is determined not to be due to manufacturing defects, you will not be entitled to a refund or replacement. We will then either return the item to you via standard post or dispose of it at your request.

Please see our warranty policy for further information.

You may return any order within 14 days of delivery. As soon as you receive your items, please inspect them carefully, taking reasonable care to keep both the product and its packaging clean and undamaged. If you discover an error or defect after 14 days, we reserve the right to decline your return. If your product fails or breaks after this 14-day time window then your order may be eligible for a warranty claim, please see our warranty information for more details.

To initiate a return, please contact us via our contact form to obtain a return authorisation and the correct returns address (different from the address on your invoice). This can also be done through your 'recent orders' page on your account if you are registered with Shop. Returns sent without prior authorisation will be discarded.

Returned items must be in the same condition in which you received them: unworn or unused, with tags attached and in their original packaging. You must include either a copy of your invoice or a slip with your order reference number inside the parcel. Please be sure not to obscure your return reference number on the label.

If you refuse delivery or reject the parcel without prior notice, we will inspect the returned package and issue a refund upon receipt. Although there is no restocking fee, we will deduct the cost of the return postage label (£3.35) from your refund.

If the returned item or its packaging shows signs of use, damage, or staining, we may deduct up to 50% of the order value, or refuse the return entirely, depending on its condition. Examples include damaged tags, stained, modified or damaged packaging, or missing components.

For faulty, incorrect, or damaged items, please contact us before sending anything back so we can attempt to resolve the issue directly. If we agree that a return is necessary due to our error, we will provide you with a pre-paid return label.

Products that have been modified or damaged through customer action are not eligible for return. This includes, but is not limited to, items that have been cut, trimmed or otherwise altered (such as a tarpaulin or pond liner resized to your specifications), or any product showing damage beyond normal inspection handling.

Please see our refund policy for further information.

All delivery times are estimates and not guaranteed. Orders placed before 1 pm, Monday to Friday (excluding bank holidays), will be dispatched the same day, while orders placed after 1 pm will be dispatched by the end of the next working day.

If an invalid postcode or address is provided, the order will be cancelled without further notice, as we are unable to modify addresses or print labels for invalid postcodes.

Our standard delivery option is Royal Mail Tracked 48, which typically takes 3–5 business days. If you need your order more quickly, Expedited delivery via Royal Mail Tracked 24 is available, offering a 1–2 business day service.

Large or bulky items may be sent via courier at our discretion and are usually dispatched for next-day delivery. Please note that we only ship to mainland UK addresses; delivery to non-mainland locations, including the Highlands & Islands, may not be available for large or heavy items. If your address falls into one of these areas and you wish to purchase such items, please contact us with your postcode and order details before placing your order. If we cannot ship to you, you are welcome to arrange your own courier for collection.

Please see our shipping policy for further information.

All products, unless otherwise stated, come with a standard manufacturer warranty against faulty workmanship.

If your product fails within six months of delivery, please contact us with your order reference number, a description of the issue, and clear images illustrating the fault.

Should your item require a return for further investigation, it is your responsibility to arrange and cover postage back to us.

If we are unable to repair the fault, we may offer either a replacement or a full refund.

In cases where the item is inspected and found not to be faulty, or where damage is determined not to be due to manufacturing defects, you will not be entitled to a refund or replacement. We will then either return the item to you via standard post or dispose of it at your request.

Please see our warranty policy for further information.

You may return any order within 14 days of delivery. As soon as you receive your items, please inspect them carefully, taking reasonable care to keep both the product and its packaging clean and undamaged. If you discover an error or defect after 14 days, we reserve the right to decline your return. If your product fails or breaks after this 14-day time window then your order may be eligible for a warranty claim, please see our warranty information for more details.

To initiate a return, please contact us via our contact form to obtain a return authorisation and the correct returns address (different from the address on your invoice). This can also be done through your 'recent orders' page on your account if you are registered with Shop. Returns sent without prior authorisation will be discarded.

Returned items must be in the same condition in which you received them: unworn or unused, with tags attached and in their original packaging. You must include either a copy of your invoice or a slip with your order reference number inside the parcel. Please be sure not to obscure your return reference number on the label.

If you refuse delivery or reject the parcel without prior notice, we will inspect the returned package and issue a refund upon receipt. Although there is no restocking fee, we will deduct the cost of the return postage label (£3.35) from your refund.

If the returned item or its packaging shows signs of use, damage, or staining, we may deduct up to 50% of the order value, or refuse the return entirely, depending on its condition. Examples include damaged tags, stained, modified or damaged packaging, or missing components.

For faulty, incorrect, or damaged items, please contact us before sending anything back so we can attempt to resolve the issue directly. If we agree that a return is necessary due to our error, we will provide you with a pre-paid return label.

Products that have been modified or damaged through customer action are not eligible for return. This includes, but is not limited to, items that have been cut, trimmed or otherwise altered (such as a tarpaulin or pond liner resized to your specifications), or any product showing damage beyond normal inspection handling.

Please see our refund policy for further information.