4.5L PET Wide Neck Demijohn – With Lid & Grommet

4.5L PET Wide Neck Demijohn — With Lid & Grommet

This 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.

Made 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).

Why Brewers Like It

• Great for small batches — perfect for 1-gallon (4.5L) ferments
• Use as primary or secondary — ferment, rack, or age in the same vessel
• Wide neck design — easier to clean, fill, and siphon from
• Smooth PET walls — sediment drops cleanly to the bottom
• Pre-drilled lid — comes with grommet ready for airlock

Tips for Use

Don'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.

Specifications

• Volume: 4.5 litres (approx. 1 US gallon)
• Material: Food-safe PET plastic
• Neck: Wide mouth with screw-on lid
• Lid: Pre-drilled with grommet (airlock-ready)
• Reusable: Yes — with proper care
• Not heat resistant: Do not use with boiling liquids