WECK 580 ml Tulip Jar RR100
The WECK 580 ml Tulip Jar RR100 is ideal for larger sourdough starter builds and active fermentation. The wide 100 mm round rim opening allows easy feeding, mixing, and cleaning, making it perfect for maintaining healthy, active cultures.
Recommended for larger sourdough starter builds.
Made from durable German glass, this jar provides excellent visibility to monitor fermentation activity and dough rise. The inverted shape also allows for easy release if using the jar for baking or dough preparation.
Compatible with WECK RR100 glass lids, rubber sealing rings, and stainless steel clips (sold separately).
✔ Ideal for larger starter builds
✔ Wide opening for easy feeding
✔ Clear glass to monitor activity
For a secure fit you will need:
• 1 × RR100 Glass Lid
• 1 × RR100 Rubber Sealing Ring
• 2 × Stainless Steel Clips
Specifications
Country
Germany
Material
Clear glass
Volume
580 ml
Full brim volume
580 ml
Diameter (outside)
110 mm
Height
84 mm
Weight
270 g
Base shape
Round
Manufacturer
Weck glass and packaging GmbH, Alter Heerweg 2, 53123 Bonn
Order by 4pm Monday to Friday and your order is dispatched the same day.
- Free UK delivery on orders over £50.
- Standard UK delivery: 1-2 working days.
- You will receive tracking by email as soon as your order is dispatched.
30-day returns. You have 30 days from receiving your item to request a return. Items must be unused, with tags, and in the original packaging.
- Approved refunds are issued to your original payment method within 10 business days.
- Starter cultures, perishable goods, custom items, gift cards and sale items cannot be returned.
- To start a return, email support@sourdoughsupply.co.uk. Returns sent without approval cannot be accepted.
Pairs well with

Tools chosen by bakers, for bakers
At Sourdough Supply Co. we test every product in our own kitchens before it earns a place in the range. From proofing baskets to precision scoring tools, each piece is selected for durability, function and performance, because great bread starts with the right equipment.
Fast, careful UK shipping
Order by 4pm Monday to Friday and your order leaves our UK warehouse the same day. Standard delivery arrives in 1-2 working days, free on orders over £50. You will receive tracking by email the moment your order ships.


From our kitchen to yours
Sourdough Supply Co. is a small UK team of home bakers. Everything we stock is tested in our own kitchens, and if a tool does not earn its place, we do not sell it.
Questions about your bake? Email us and a real person will reply.







