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

🌿 Elevate your kitchen game with WeckJars — where vintage charm meets airtight innovation!

BUILT TO LAST REUSE - Thick, durable glass offers a sustainable alternative to plastic—dishwasher and microwave safe.
PRESERVE WITH CONFIDENCE - Airtight seal locks in freshness and flavor for your sourdough, pickles, and juices.
VERSATILE CULINARY COMPANION - Perfect for canning, storing leftovers, or fermenting your favorite foods with ease.
GIFT THE ART OF HOME PRESERVATION - A thoughtful, stylish present that elevates any foodie’s kitchen arsenal.
DESIGNED FOR THE MODERN VINTAGE AESTHETIC - Iconic tulip shape blends timeless style with contemporary kitchen elegance.

Weck Tulip Jars are 1-liter, airtight glass containers designed for versatile food storage and canning. Featuring a wide mouth for easy access, durable thick glass construction, and compatibility with microwaves and dishwashers, these eco-friendly jars are perfect for sourdough starters, pickled vegetables, juices, and more. Their iconic tulip shape adds a stylish vintage touch, making them both functional and a conversation starter in any modern kitchen.

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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