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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.
It’s a solid choice whether you’re trialling new recipes, running side-by-side yeast tests, or just don’t want to commit to a full 23L batch.
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.
It includes a large screw-on lid that’s 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 or melt under high heat.
To clean, use warm (not hot) water and a food-safe cleaner like Handcraft Supplies Cleaner & Sanitiser.
Avoid abrasive scrubbers that could scratch the plastic.
Specs
- Volume: 4.5 litres (1 US gallon approx.)
- 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
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