Will these work for making kefir?

If making Kefir requires a fermentation process, and the vessel you make it in fits the silicone top the. Yes, it will work fine. I’ve started putting mine in the dishwasher( top rack only) to. Lean them before using them. Pretty good product.

Does this stay on securely enough that I could shake a drink with ice in a mason jar using this lid?

I just tried it! I filled the quart jar 1/2 full of ice, filled it to the neck with water, put the lid on and shook it over the sink briskly. It worked fine, but I would use caution still. Mine are new as well so I'm not sure about it over time. My kim chi loves them...

Can these be used for sous vide?

I don’t know. I use for sourkraut

Can these lids be used in F2 when making Kombucha?

Yes if it’s the same size container. Events fermentation, gases well.

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SOPHICO Silicone Airlock Ferment Lids Pickle Kit for Wide Mouth Mason Jar

SOPHICO Silicone Airlock Ferment Lids Pickle Kit for Wide Mouth Mason Jar

Product ID: 458476488

Details

Brand
SOPHICO
Colour
Mix-wide Mouth
Item weight
0.15 Kilograms
Material
Plastic
Style
Jar Can

💨One-way waterless airlock valve

🧼Dishwasher safe for effortless cleaning

🛡️100% food-grade BPA-free silicone

¥6635

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Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🥒 Unlock the freshest, probiotic-packed flavors—fermentation made foolproof!

HASSLE FREE CLEANUP - Dishwasher safe lids that keep your kitchen routine sleek and efficient.
DURABLE SAFE SILICONE - Premium BPA-free, lead-free silicone that resists wear, fading, and deformation.
BEGINNER FRIENDLY DESIGN - No extra lids or oxygen pumps needed—perfect for fermentation rookies and pros alike.
PROBIOTIC POWERHOUSE AT HOME - Craft your own kimchi, sauerkraut, pickles & more with confidence and ease.
EFFORTLESS FERMENTATION MASTERY - Self-burping airlock vents gas automatically—no water, no burping, zero hassle.

The SOPHICO Silicone Airlock Ferment Lids Pickle Kit features four BPA-free, food-grade silicone lids designed exclusively for wide mouth mason jars. Equipped with a one-way waterless valve, these self-burping lids automatically vent fermentation gases without any manual burping or water refills. Durable and dishwasher safe, they simplify home fermentation of kimchi, pickles, sauerkraut, and more—making probiotic-rich foods accessible for beginners and experts alike.

Specifications

ASIN	B09NPGLRN3
Best Sellers Rank	1,008,945 in Home & Kitchen ( See Top 100 in Home & Kitchen ) 2,509 in Preserving Lids
Brand	SOPHICO
Closure Type	Lid
Colour	Mix-wide Mouth
Customer Reviews	4.5 4.5 out of 5 stars (883)
Included Components	Fermenting Lids
Is the item dishwasher safe?	Yes
Is the item microwaveable?	Yes
Item Highlight	for Pickles, Kimchi, and Fermented Probiotic Food, Waterless Airlock Cap, for Wide Mouth Mason Jar(4 pack)
Item Weight	0.15 Kilograms
Manufacturer	SOPHICO
Material	Plastic, Silicone
Model Number	WIDE MOUTH
Number of Pieces	4
Product Style	Jar,Can
Shape	Round
UPC	612677839335

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¥6635

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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