Silicone Valve

Silicone Fermentation Lids


Food safe silicone raw materials 

Silicone fermentation lids with one-way duckbill valve systerm

Low profile design

84mm outer diameter size

Factory price, fast delivery, strict quality control

Free samples can be provided for quality checking



Specification Of Foolproof Silicone Fermentation Lids

Product NameWholesale BPA Free Food Safe Silicone Fermentation Lids For Wide Mouth Mason Jars
Model NumberHHSV26
MaterialFDA& LFGB Approved Food Safe Silicone Material
Color Customize Any Pantong Colors
Hardness50 Shore A
Outer Diameter84MM
Slit Cut TypeDuckbill Slit Cut Type
Slit Cut Size6*6MM
Mold TypeCompression Molding

Tool Design - Tool Manufacturing - Compression Molding - Whole Piece Inspection - Punching Slit Cut - Add Talcum Powder - Punching Shape  - Quality Checking - Dust Free Packing - Shipping

MoldPublic Mold
MOQ10000 PCS
Daily Capacity200,000 PCS/ Line
Mold Cavity32CAV
WorkshopClass 100,000 Clean Production Workshop And Silicone Valves Special Production Workshop
ApplicationLow Profile Silicone Fermentation Lids Can Be Used For Home Vegetable Fermentation Jars, Such As: Probiotic-rich Sauerkraut, Kimchi, Carrots, Tomatoes, Garlic, Radishes Jars And More
IntercomsEXW, FOB, CIF, DDP, Or Delivery To Assembly China Factories


  • mason jar fermentation lid

    mason jar fermentation lid

  • ball canning jar lid

    ball canning jar lid

Product Information

What Are Silicone Fermentation Lids?

One-way airlocks silicone fermentation lids are also known as mason jar fermentation lid, made of FDA & LFGB approved food grade solid silicone material, can be used for fermenting foods jars such as vegetables, fruits, and dairy products containers. 84mm outer diameter size, public mold, low moq, fast delivery.

Silicone Fermentation Lids

How Do I Use Silicone Fermentation Lids ?

The working principle of one-way valve systerm silicone fermentation lids is to provide an airtight seal, which can allow the carbon dioxide produced during fermentation to escape while preventing oxygen or other contaminants from entering.

Here are the steps to use self-venting airlock silicone fermentation lids:

Step 1: Prepare fermenting jars

Step 2: Fill the containers with the fermenting ingredients

Step 3: Add liquid

Step 4: Place the silicone fermentation lids

Step 5: Secure the silicone fermentation lids

Step 6: Store silicone fermentation lids in a suitable location

Step 7: Monitor the fermentation process

Step 8: Fermentation completion

Silicone Fermentation Lids

The Benefits Of Using Silicone Fermentation Lids?

1. Prevent Pollution

Good sealing silicone fermentation lids create an airtight seal, which can prevent the entry of air, dust, and other unwanted microorganisms into the fermentation vessel, this will reduce the risk of pollution and ensures a successful fermentation.

2. Flow Control The Air

Silicone fermentation lids with one-way valve systerm, with adjustable function, which can flow control the air during fermentation. This helps jars maintain a ideal environment for the growth of beneficial bacteria and yeast, leading to better fermentation results.

3. Eliminates The Need For Burping

Silicone fermentation lids with a duckbill valve above, when there have carbon dioxide produced during fermentation, the silicone duckbill valve will open and automatically removes excess without the need for manual intervention.

4. Reduce Mold Formation

Because silicone fermentation lids with a duckbill valve above, so when carbon dioxide is produced in the mason jar, the duckbill valve opens automatically and the fermentation minimizes contact with the air, thus reducing mold formation.

5. Easy To Clean And Reusable

Silicone fermentation lids are high tempreture resistant, so whicn can clean in dishwasher, and can also reuse.

Silicone Fermentation Lids

If you are interested in silicone fermentation lids, please feel free to contact us, thanks.

Manufacturing Process

Process Of LFGB Approved Silicone Fermentation Lids

Tool Design - Tool Manufacturing - Compression Molding - Whole Piece Inspection - Punching Slit Cut - Add Talcum Powder - Punching Shape  - Quality Checking - Dust Free Packing - Shipping

Silicone Fermentation Lids


Packing Of Food Safe Silicone Fermentation Lids

For durable silicone fermentation lids, to keep the product clean and not deformed while in transportation and in storage, normally, the packaging as follow: 

Item NamePCS/ PE BagPCS/ CartonCarton SizeN.W.G.W.
FDA Certificated Silicone Fermentation Lids100pcs500pcs35*26*21 CM5KG6KG

Silicone Fermentation Lids


  • 1

    Are you a manufacturer or a trading company?

    We're a manufacturer of silicone molding products, with about 10,000 square meters production workshops.

  • 2

    Can you provide free samples?

    Free samples can be provided for quality checking, freight cost need be charged.

  • 3

    What are the advantages of Hopewell to preduce silicone valves?

    Hopewell started producing silicone valves in 2011, we also have professional engineering team, precision mold manufacturing department and perfect quality control department, a 100,000-level clean production workshop, and has passed ISO9001, ISO13485, IATF16949 and ISO14001 certifications.

  • 4

    What is your MOQ for silicone valve?

    Our moq is 50000 pcs for four sizes cross slit silicone valves in public mold; for customized silicone products, the final quotation shall prevail.

  • 5

    Can you accept OEM/ ODM orders?

    Currently we only accept OEM orders.

  • 6

    What information do I need to provide for custom silicone valves?

    Please provide 2D and 3D drawings (STP format) or actual samples, then our engineering team will provide DFM for your confirmation.

  • 7

    What is the lead time for custom silicone valves?

    For prototype molds, the lead time for silicone valves is about 7-15 working days; for production molds, the lead time is about 15-45 working days.

  • 8

    Can I use your silicone valves mold?

    We only have four cross slit silicone valves mold can be used, other molds are customized by other customers.

  • 9

    Can you provide proof of raw materials?

    Yes, we can provide MSDS, FDA, LFGB test reports for confirmation.

  • 10

    Can you provide plastic valve seat samples?

    We have 4 sizes plastic valve seats in public mold, the outer diameters are 11.85mm, 12.3mm, 14.6mm and 18.6mm. Free samples are available, please contact us for more information.

  • 11

    Can i vist your factory?

    Of course, highly welcome.

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