How specificly do these jars work as a sourdough starter jar?

The fact that the mouth of the jar is larger makes it easier to add the flour and water during the "feeding" process. It has two different lid options. When I store in the refrigerator for a week, I use the plastic lid. I have shared my starter with friends and put it in these jars and use the glass lid with the clips so it is more secure on the trip to their home (I also give the plastic lid for when they store in the refrigerator). I sent some to my daughter who is enjoying them for her sourdough starter.

How large is the opening and how tall is the jar?

The jars I purchased are 9cm for the opening and the height of the jar is 15cm.

Can the seal be removed from the lid to allow for gas to escape as the starter ferments?

Don’t use the clips and that will allow for gas to escape

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Description

🔒 Seal in freshness, serve with style – the jar that means business!

GIFT READY ELEGANCE - A sophisticated present that impresses friends and family with both style and utility.
PRESERVE LIKE A PRO - Air-tight twist lock seals in freshness, perfect for sourdough starters, pickles, and juices.
ECO CONSCIOUS CHOICE - Ditch plastic for thick, sturdy glass that’s built to last and kind to the planet.
DISHWASHER MICROWAVE SAFE - Effortless cleaning and reheating without compromising jar integrity.
VINTAGE CHIC MEETS MODERN FUNCTION - Elevate your kitchen aesthetics with iconic tulip-shaped jars that double as stylish serveware.

Weck Tulip Jars offer 35.9 fl. oz of versatile, air-tight storage in a vintage-inspired tulip design. Crafted from thick, durable glass, these jars are microwave and dishwasher safe, making them perfect for sourdough starters, pickling, juicing, and more. Eco-friendly and elegant, they’re the ultimate upgrade for your kitchen storage and a standout gift choice.

Specifications

Product dimensions	9.8L x 9.8W x 14.6H centimetres
Recommended uses for product	Sourdough starter, Pickled vegetables, Dried pulses, Juice, Leftover food, Canning
Special feature	Air Tight
Container Shape	Tulip
Closure type	Twist Lock
Dishwasher safe?	Yes
Item package quantity	1
Item weight	1.43 kg
Product care instructions	Microwave Safe, Dishwasher Safe
Item volume	35.9 Fluid Ounces
Unit count	1.0 Count
Is microwaveable	Yes
Item form	tulip
Manufacturer	Weck Jars
Number of items	2
Size	Glass Lids and Keep Fresh Covers
Pattern	Jars, Glass Lids & Keep Fresh Covers
Shape	Novelty
Special Features	Air Tight
Batteries included?	No
Batteries Required?	No
Item Weight	1.43 kg

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