743 Mold Jar (Weck 743)

I use this for starter. They are very easy to use. Highly recommended. You will see it recommended from many people who work with starter and that's because it is so nice to clean and it looks good and feels high quality. I have four and will probably get another two.

Love the Weck jars! No leaks due to the rubber seal. I can microwave soup straight from the jar. The clips tighten the lid which is also glass. By far, dishwasher safe. I can use cold and hot items in the jar. Easy storage. Perfect jars for anything.

Excellent quality. Easy to clean, seal well and attractive. This size (WECK 743) is excellent for sourdough starter as recommended in, “The Perfect Loaf” cookbook (which we also recommend).

I didn’t expect to love this as much as I do, but it’s quickly become one of my favorite baking tools. The one-handed design is incredibly convenient—especially when your other hand is covered in dough—and it gives you great control over how much flour or powdered sugar you’re using. The dusting is smooth and even, no clumps or heavy patches, which makes a noticeable difference when prepping surfaces or finishing pastries. The 304 stainless steel feels solid and well-made, not flimsy at all, and it’s easy to refill without making a mess. It’s one of those simple tools that really improves your workflow in the kitchen. If you bake regularly, this is absolutely worth having—and it also makes a great gift!

These Weck jars are absolutely perfect for sourdough. The wide mouth makes it super easy to feed and stir my starter without making a mess, and the glass is thick and durable. I love that they don’t have any metal parts touching the starter—just glass and rubber—so there’s no risk of corrosion or weird smells. The glass lids also sit loosely on top, which is great for letting the starter breathe without drying out. They look beautiful on the counter too, which is a bonus! If you bake sourdough or keep a starter going year-round, these jars are worth every penny. Functional, clean, and so much prettier than a random mason jar!

These jars were on the more expensive side, but I do really like the size of them. Just perfect size for sourdough starter. I also like that you don't have to use the glass lid if you don't want to. Washes up easily in the dishwasher (note- if using sourdough- make sure you thoroughly wipe out your jars before putting in sink or dishwasher to save your pipes from the cement of the dough!). Jars are great and I would recommend!

These are really great. They’re perfect for sourdough starters! They are super strong & can be airtight or not depending on if you use the rubber & gaskets. They wash well.

First sent of jars, one was broken. Replaced very fast. Great jars for my sourdough starter

Beautiful jars but received one of them smashed to smithereens and the other was fine.

Paketleme çok özenli ürünlerim sağlam bir şekilde teslim aldım teslimat süreci ile ilgili memnun kaldım boyut tam istediğim gibiydi

Muy buen artículo para almacenar especies y alimentos

Poor manufacturing quality, multiple long cracks and bubbles in glass, asymmetrical off-centred bottom

I bought these jars in February. One of them is broken already while I was discarding my sourdough starter with a spatula. Not happy at all as I thought they would last longer than that given the price of them.