{"title":"Demijohns \u0026 Carboys","description":"","products":[{"product_id":"23-litre-pet-carboy","title":"23 Litre Plastic Carboy - PET","description":"\u003ch2\u003e23 Litre Plastic Carboy — PET\u003c\/h2\u003e\u003cp\u003eA 23-litre (5 UK gallon) carboy fermenter made from clear, heavy-duty PET plastic that is stain, odour, and taste resistant. Low oxygen permeability significantly reduces the risk of oxidation, making it well suited to wines, ciders, and beers that benefit from a secondary fermentation vessel.\u003c\/p\u003e\u003cp\u003eTo minimise the risk of distortion, use lukewarm rather than boiling water when cleaning or rinsing this fermenter. We recommend using a tail cork or carboy cap with a bubbler airlock for a proper seal.\u003c\/p\u003e\u003ch3\u003eAt a Glance\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eCapacity: 23 litres \/ 5 UK gallons (max volume approx. 24L)\u003c\/li\u003e\n\u003cli\u003eMaterial: clear, food-grade PET — stain, odour, and taste resistant\u003c\/li\u003e\n\u003cli\u003eLow oxygen permeability — reduces oxidation risk\u003c\/li\u003e\n\u003cli\u003eMax diameter: 28cm\u003c\/li\u003e\n\u003cli\u003eOverall height: approx. 49cm\u003c\/li\u003e\n\u003cli\u003eUse with: tail cork or carboy cap and bubbler airlock (sold separately)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Youngs","offers":[{"title":"Default Title","offer_id":52616119124311,"sku":"4481","price":32.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0979\/5495\/5607\/files\/11l_pet_carboy.jpg?v=1777986612"},{"product_id":"1-gallon-glass-demijohn","title":"1 Gallon Glass Demijohn (4.5 litres)","description":"\u003ch2\u003eTraditional Glass Demijohn — 4.5L UK Gallon\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003e1 gallon glass demijohn\u003c\/strong\u003e bottles are a staple for small-batch fermentation. With a narrow neck and twin-handled design, this traditional UK-style demijohn is ideal for maturing homemade wine, mead, cider, and more.\u003c\/p\u003e\u003cp\u003eUnlike large carboys, the compact 4.5L capacity is well suited for experimental or seasonal brews. The narrow neck helps reduce oxygen exposure during fermentation or storage.\u003c\/p\u003e\u003cp\u003eUse with a bored bung and airlock for active fermentation, or seal with a solid stopper when aging.\u003c\/p\u003e\u003chr\u003e\u003ch3\u003eWhat Is a 1 Gallon Glass Demijohn?\u003c\/h3\u003e\u003cp\u003eA 1 gallon demijohn is a clear glass vessel used by homebrewers to ferment and store beverages like wine and mead. It holds 4.5 litres to the shoulder and features a traditional bulb shape with twin glass handles for easy carrying.\u003c\/p\u003e\u003chr\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacity:\u003c\/strong\u003e 4.5L (UK 1 gallon)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Clear glass with integrated handles\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNeck:\u003c\/strong\u003e Suitable for standard demijohn bungs and airlocks\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e Approx. 32cm height x 18cm diameter (56cm circumference)\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003eWhy Choose a Glass Demijohn?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eNon-reactive — won't affect flavour or colour\u003c\/li\u003e\n\u003cli\u003eFully transparent — monitor clarity and fermentation progress\u003c\/li\u003e\n\u003cli\u003eCompact size — great for testing recipes or small quantities\u003c\/li\u003e\n\u003cli\u003eTraditional look — ideal for gifting or classic-style winemaking\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003eCompatible With\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRubber bungs\u003c\/strong\u003e — for sealing or attaching airlocks\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAirlocks\u003c\/strong\u003e — allow CO₂ release during active fermentation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolid stoppers\u003c\/strong\u003e — seal the vessel during aging\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003eCommon Uses\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWine making\u003c\/strong\u003e — mature red, white, or fruit wines in small batches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMead fermentation\u003c\/strong\u003e — traditional honey wine brewing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCider brewing\u003c\/strong\u003e — perfect for seasonal apple or pear ferments\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSplit batches\u003c\/strong\u003e — ideal for experimenting with yeast or adjuncts\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003eBrewer's Tip\u003c\/h3\u003e\u003cp\u003eAlways leave at least 5cm of headspace when filling to allow for foaming during fermentation. Once fermentation is complete, switch from an airlock to a solid bung to limit oxygen exposure during aging.\u003c\/p\u003e","brand":"Hambleton Bard","offers":[{"title":"Default Title","offer_id":52616119189847,"sku":"2847","price":12.95,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0979\/5495\/5607\/files\/glass_demijohn.jpg?v=1777555934"},{"product_id":"23-litre-glass-carboy","title":"23 Litre Glass Carboy","description":"\u003ch2\u003eGlass Carboy — 23 Litre\u003c\/h2\u003e\n\u003cp\u003eAn Italian-made, straight-sided traditional glass carboy — a great step up from a demijohn when you're producing larger batches. Glass carboys have long been the preferred fermentation vessel for serious homebrewers, and it's easy to see why.\u003c\/p\u003e\n\u003cp\u003eUse as a primary fermenter for beer or cider (with a blow-off hose) or as a secondary fermenter for wine. If handled carefully, a glass carboy will last decades.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eAdvantages\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAirtight — impervious to oxygen that can harm your homebrew\u003c\/li\u003e\n\u003cli\u003eEasy to sanitise and odour-free\u003c\/li\u003e\n\u003cli\u003eDoesn't scratch easily with careful cleaning\u003c\/li\u003e\n\u003cli\u003eEspecially popular for bulk aging wine before bottling\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDiameter: 28cm\u003c\/li\u003e\n\u003cli\u003eMaximum height: 56cm\u003c\/li\u003e\n\u003cli\u003eNeck external: 55mm\u003c\/li\u003e\n\u003cli\u003eNeck internal: 32mm\u003c\/li\u003e\n\u003cli\u003eMax volume: approx. 25 litres\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003eImportant Notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eThere is a small casting line at the base of the fermenter on the outside — this is normal and does not affect performance\u003c\/li\u003e\n\u003cli\u003eDo not subject to extreme or rapid temperature changes\u003c\/li\u003e\n\u003cli\u003eThe neck diameter is slightly wider than a standard 5L demijohn — standard demijohn bungs will not fit. See our \u003ca href=\"\/products\/rubber-airlock-holder-bung-small\"\u003eRubber Airlock Holder Bung (Small)\u003c\/a\u003e for a suitable option (check sizing before ordering)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cem\u003eIn common with all glass products, there is an attendant risk of breakage in transit. We have minimised this risk and will rectify any breakage for UK shipments only.\u003c\/em\u003e\u003c\/p\u003e","brand":"Hambleton Bard","offers":[{"title":"Default Title","offer_id":52616119386455,"sku":"2797","price":54.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0979\/5495\/5607\/files\/23l_glass_carboy.jpg?v=1777562441"},{"product_id":"11-litre-pet-carboy","title":"11 Litre Plastic Carboy - PET","description":"\u003ch2\u003e11 Litre Plastic Carboy — PET\u003c\/h2\u003e\u003cp\u003eAn 11.4-litre (2.5 UK gallon) carboy fermenter made from clear, heavy-duty PET plastic that is stain, odour, and taste resistant. Low oxygen permeability significantly reduces the risk of oxidation, making it well suited to wines, ciders, and smaller batch beers that benefit from a secondary fermentation vessel.\u003c\/p\u003e\u003cp\u003eTo minimise the risk of distortion, use lukewarm rather than boiling water when cleaning or rinsing this fermenter. We recommend using a tail cork or carboy cap with a bubbler airlock for a proper seal.\u003c\/p\u003e\u003cp\u003eAlso available in a larger size: \u003ca href=\"\/products\/23-litre-pet-carboy\"\u003e23 Litre PET Carboy\u003c\/a\u003e.\u003c\/p\u003e\u003ch3\u003eAt a Glance\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eCapacity: 11.4 litres \/ 2.5 UK gallons\u003c\/li\u003e\n\u003cli\u003eMaterial: clear, food-grade PET — stain, odour, and taste resistant\u003c\/li\u003e\n\u003cli\u003eLow oxygen permeability — reduces oxidation risk\u003c\/li\u003e\n\u003cli\u003eMax diameter: 23cm\u003c\/li\u003e\n\u003cli\u003eOverall height: 39cm\u003c\/li\u003e\n\u003cli\u003eUse with: tail cork or carboy cap and bubbler airlock (sold separately)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Youngs","offers":[{"title":"Default Title","offer_id":52616119419223,"sku":"544","price":24.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0979\/5495\/5607\/files\/11l_pet_carboy_55bc1fa0-a547-4094-b406-e960a3bec68a.jpg?v=1777986768"},{"product_id":"11-litre-glass-carboy","title":"11 Litre Glass Carboy","description":"\u003ch2\u003eGlass Carboy — 11 Litre\u003c\/h2\u003e\u003cp\u003eThe 11 litre glass carboy hits the sweet spot between a 4.5L demijohn and a full 23L carboy. It's ideal for brewers who want to scale up from single-gallon batches without committing to a full 23-litre ferment — producing roughly 15 bottles per batch.\u003c\/p\u003e\u003cp\u003eItalian-made with straight sides for easy cleaning and a classic look, it works equally well as a primary fermenter for beer or cider (with a blow-off hose) or as a secondary vessel for wine aging.\u003c\/p\u003e\u003chr\u003e\u003ch3\u003eWhy Choose the 11L?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePerfect middle ground — more than a demijohn, less commitment than a full 23L batch\u003c\/li\u003e\n\u003cli\u003eAirtight glass — impervious to oxygen that can harm your homebrew\u003c\/li\u003e\n\u003cli\u003eEasy to sanitise, odour-free, and scratch-resistant with careful cleaning\u003c\/li\u003e\n\u003cli\u003ePopular for split batches, experimental brews, and bulk wine aging\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDiameter: 23cm\u003c\/li\u003e\n\u003cli\u003eMaximum height: 43cm\u003c\/li\u003e\n\u003cli\u003eNeck external: 55mm\u003c\/li\u003e\n\u003cli\u003eNeck internal: 32mm\u003c\/li\u003e\n\u003cli\u003eMax volume: approx. 11 litres\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003eImportant Notes\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eThere is a small casting line at the base on the outside — normal and does not affect performance\u003c\/li\u003e\n\u003cli\u003eDo not subject to extreme or rapid temperature changes\u003c\/li\u003e\n\u003cli\u003eThe neck is slightly wider than a standard demijohn — standard demijohn bungs will not fit. See our \u003ca href=\"\/products\/rubber-airlock-holder-bung-large\"\u003eRubber Airlock Holder Bung (Large)\u003c\/a\u003e for a suitable option (check sizing before ordering)\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003cp\u003e\u003cem\u003eIn common with all glass products, there is an attendant risk of breakage in transit. We have minimised this risk and will rectify any breakage for UK shipments only.\u003c\/em\u003e\u003c\/p\u003e","brand":"Hambleton Bard","offers":[{"title":"Default Title","offer_id":52616119910743,"sku":"2831","price":39.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0979\/5495\/5607\/files\/23l_glass_carboy.jpg?v=1777562441"},{"product_id":"glass-demijohn-single-handle","title":"5 Litre Glass Demijohn - Single Handle","description":"\u003ch2\u003e5 Litre Demijohn Bottle\u003c\/h2\u003e\n\u003cp\u003eA standard single handled glass demijohn that holds up to 5 litres.\u003c\/p\u003e\n\u003cp\u003eSmall \u0026amp; convenient enough to fit on a work top \u0026amp; ideal for those that like to watch the progress of their fermentations.\u003c\/p\u003e\n\u003cp\u003eCompatible with our standard demijohn bungs and can be used for fermenting and secondary conditioning.\u003c\/p\u003e","brand":"Bevie","offers":[{"title":"Default Title","offer_id":52616123973975,"sku":"2155","price":9.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0979\/5495\/5607\/files\/5049.jpg?v=1769185055"},{"product_id":"4-5l-pet-wide-neck-fermentation-demijohn","title":"4.5L PET Wide Neck Demijohn – With Lid \u0026 Grommet","description":"\u003ch2\u003e4.5L PET Wide Neck Demijohn — With Lid \u0026amp; Grommet\u003c\/h2\u003e\u003cp\u003eThis 4.5L wide-neck PET demijohn is perfect for small-batch fermentations of wine, beer, cider, or mead. Whether you're trialling new recipes, running side-by-side yeast tests, or just don't want to commit to a full 23L batch, it's a solid, practical choice.\u003c\/p\u003e\u003cp\u003eMade from food-grade PET plastic, it's lightweight, durable, and easy to carry — ideal for anyone tight on space or looking for something less fragile than glass. The large screw-on lid is already drilled and fitted with a rubber grommet, so it's ready to go with any standard airlock (sold separately).\u003c\/p\u003e\u003ch2\u003eWhy Brewers Like It\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGreat for small batches\u003c\/strong\u003e — perfect for 1-gallon (4.5L) ferments\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUse as primary or secondary\u003c\/strong\u003e — ferment, rack, or age in the same vessel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide neck design\u003c\/strong\u003e — easier to clean, fill, and siphon from\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmooth PET walls\u003c\/strong\u003e — sediment drops cleanly to the bottom\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre-drilled lid\u003c\/strong\u003e — comes with grommet ready for airlock\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTips for Use\u003c\/h2\u003e\u003cp\u003eDon't use boiling water in this demijohn — PET plastic can warp under high heat. Clean with warm (not hot) water and a food-safe cleaner. Avoid abrasive scrubbers that could scratch the plastic.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVolume:\u003c\/strong\u003e 4.5 litres (approx. 1 US gallon)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Food-safe PET plastic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNeck:\u003c\/strong\u003e Wide mouth with screw-on lid\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLid:\u003c\/strong\u003e Pre-drilled with grommet (airlock-ready)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReusable:\u003c\/strong\u003e Yes — with proper care\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot heat resistant:\u003c\/strong\u003e Do not use with boiling liquids\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Bevie","offers":[{"title":"Default Title","offer_id":52616124727639,"sku":"885","price":5.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0979\/5495\/5607\/files\/demijohn_wide_pet.jpg?v=1777554790"},{"product_id":"4-5l-pet-demijohn-with-grommet-cap","title":"4.5L PET Demijohn with Grommet Cap","description":"\u003ch2\u003e4.5L PET Demijohn with Grommet Cap\u003c\/h2\u003e\n\u003cp\u003eA lightweight, thin-walled square PET demijohn with ribbing for added strength. At 4.5 litres it's the ideal starter fermenter — producing around 6 bottles per batch — and compact enough to sit on a worktop so you can keep an eye on fermentation progress.\u003c\/p\u003e\n\u003cp\u003eThe screw-on cap comes pre-drilled and fitted with a rubber grommet, so it accepts a standard airlock straight away — no bored cork or bung required.\u003c\/p\u003e\n\u003ch3\u003eTips for Use\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUse lukewarm water only — avoid boiling water as it can distort the thin walls\u003c\/li\u003e\n\u003cli\u003eFor longevity, or when fermenting or storing higher-ABV wines and washes, glass is recommended over plastic\u003c\/li\u003e\n\u003cli\u003eNeed a solid cap instead? See our \u003ca href=\"\/products\/5-litre-pet-demijohn-with-solid-cap\"\u003e4.5L PET Demijohn with Solid Cap\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eVolume: 4.5 litres (approx. 6 bottles)\u003c\/li\u003e\n\u003cli\u003eMaterial: Food-safe PET plastic\u003c\/li\u003e\n\u003cli\u003eShape: Square with ribbed walls\u003c\/li\u003e\n\u003cli\u003eIncludes: Pre-drilled screw cap with grommet (airlock-ready)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Bevie","offers":[{"title":"Default Title","offer_id":53606141788503,"sku":null,"price":3.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0979\/5495\/5607\/files\/demijohn_pet_with_grommet_cap.jpg?v=1777555435"},{"product_id":"4-5l-pet-demijohn-with-solid-cap","title":"4.5L PET Demijohn with Solid Cap","description":"\u003ch2\u003e4.5L PET demijohn with solid cap\u003c\/h2\u003e\n\u003cp\u003eA lightweight 4.5-litre square PET demijohn with a solid screw cap. Suitable for fermenting wine, cider, mead, or country wines in standard 1-gallon (6-bottle) batches. PET plastic is shatter-resistant and significantly lighter than glass, making it easier to handle and store.\u003c\/p\u003e\n\u003cp\u003eThe solid cap provides a secure seal for storage or secondary fermentation where an airlock is not required. To use with an airlock during active primary fermentation, replace the cap with a drilled bung or grommet cap (sold separately).\u003c\/p\u003e\n\u003ch3\u003eAt a Glance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCapacity: 4.5 litres (1 gallon)\u003c\/li\u003e\n\u003cli\u003eMaterial: PET plastic (shatter-resistant, lightweight)\u003c\/li\u003e\n\u003cli\u003eCap: Solid screw cap (no grommet)\u003c\/li\u003e\n\u003cli\u003eShape: Square\u003c\/li\u003e\n\u003cli\u003eBatch size: Approx. 6 bottles\u003c\/li\u003e\n\u003cli\u003eSuitable for: Wine, cider, mead, country wines\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003ePlease note:\u003c\/strong\u003e The solid cap does not accept an airlock. For active primary fermentation, a drilled bung or grommet cap is required (sold separately). For a glass demijohn alternative, see our \u003ca href=\"\/collections\/demijohns-carboys\"\u003eDemijohns \u0026amp; Carboys\u003c\/a\u003e collection.\u003c\/p\u003e","brand":"Bevie","offers":[{"title":"Default Title","offer_id":53606158106967,"sku":null,"price":3.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0979\/5495\/5607\/files\/demijohn_pet_with_grommet_cap.jpg?v=1777555435"}],"url":"https:\/\/www.home-brew-hopshop.co.uk\/collections\/glass-demijohns-carboys.oembed","provider":"The Hop Shop","version":"1.0","type":"link"}