WECK Sour Dough Starter Jars, Classic Glass Jars for Sourdough with Glass Lid, Tulip Jar Wide Mouth 1 Liter (2 Pack) Review (2026)

Who This Jar Set Suits

WECK is a longstanding German glassware brand, and this listing bundles two of its classic 1 liter tulip jars, named for their shape that narrows slightly at the neck before widening at the mouth. This suits a sourdough baker who wants a jar built specifically with brand history in canning and food storage glassware, rather than a generic mason jar repurposed for starter duty. The wide mouth design, a hallmark of WECK's tulip shape, makes it easier to stir a starter with a spatula and to scrape down the sides when feeding, compared to a narrow-necked jar. A baker who wants a single feeding jar rather than a pair may find a 2 pack provides more capacity than needed, though having a spare jar is convenient for alternating while one is being cleaned.

Capacity and Shape

Each jar in the set holds 1 liter, listed as roughly 35.9 fluid ounces, which comfortably fits an actively growing and feeding starter with room to rise without overflowing, provided the starter is fed at a reasonable ratio relative to the jar size. The tulip shape's wide mouth also makes pouring off discard or transferring starter between containers easier than with a straight-sided jar of similar capacity. WECK jars are widely recognized for their clear glass construction, which lets a baker visually track a starter's rise and fall between feedings without needing to remove a lid or use a rubber band marker on the glass.

Included Lids and Sealing

According to the listing, this 2 pack includes a glass lid for each jar along with a cork lid and a keep fresh cover, giving a baker multiple options depending on whether the goal is loose covering during active fermentation or firmer covering for short-term storage. A loosely set glass or cork lid is generally preferred over a fully sealed canning-style lid while a starter is actively fermenting, since gases need to escape rather than build pressure inside a sealed jar. Bakers who want the fully airtight seal that WECK jars are also known for, using a rubber ring and steel clips together with the glass lid, should confirm those specific pieces are included with this particular 2 pack listing before assuming they come standard, since some WECK jar listings sell the sealing rings and clips separately from the jar and lid.

Durability and Cleaning

Glass jars from an established glassware maker like WECK are generally built to a consistent quality standard, which matters for a tool used daily over months or years of starter maintenance, since a jar that chips or cracks under normal handling would need frequent replacement. The wide mouth shape that makes stirring easy also makes hand washing straightforward, letting a baker reach in with a brush or sponge to clean dried starter residue from the interior walls and the neck area where the shape narrows slightly before spreading effectiveness declines with buildup. Regular cleaning of a starter jar, regardless of brand, helps prevent mold or off odors from developing in dried residue left on the glass between feedings.

Value for Starter Maintenance

As a 2 pack from a recognized glassware brand, this set gives a baker two full-size feeding jars for the cost of buying from an established maker rather than a generic off-brand jar, with the wide tulip mouth adding a practical advantage for daily stirring and feeding over a narrower jar shape. The main thing to verify before buying is exactly which sealing components ship with this listing, since the difference between a loosely set lid for active fermentation and a fully sealed canning setup with rubber rings and clips changes how the jar can be used beyond starter feeding, such as for canning or long-term dry storage once the starter itself has moved to a different container.

Frequently asked questions