Can these be used to make mead?

They probably could... BUT you won't get carbonation built up in mead with these because any carbonation bubbles will escape through the top resulting in flat mead, beer, kombucha(I didn't get any carbonation), which is how I know. These lids are meant for fermented apple cider vinegar or fermented fruits and vegetables where fizz is not desired. They will keep ferments of these foods from exploding or oozing out of jar. I haven't made mead, but I presume you want it fizzy like beer, right? So, best bottles are Grosch beer brewing bottles. Lots of carbonation over several days if it takes as long as my kombucha does. Don't burp them either or fizz will go flat. Amazon has many vendors of these bottles. a Six pack of 15 oz bottles will cost between 14.00 and 18.00 for a box and they are perfect for fizziness. You can get different sizes as well, but I recommend short broad Grosch bottles because they fit easier in the fridge. Best of luck and hope this helped. maureen

Once the fermentation process is complete, would I remove this lid and put a regular, wide mouth lid in its place?

Once fermentation is complete there is no reason to keep venting process going. Place regular lid on jar and move to refrigerator. Wash venting lid parts in soapy water.

What is the recommended method for sterilizing the seals?

Use StarSan for sterilizing all of the components of my fermentation equipment.

Has anyone made kvass with these?

https://www.youtube.com/watch?v=6OsLi9mHeQs Different jar, but these will work.

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JILLMO Fermentation Kit for Wide Mouth Jars - 4 Airlocks, 4 Silicone Grommets, 4 Stainless Steel Wide mouth Mason Jar Fermenting Lids with Silicone Rings (4 Set, Jars Not Included)

Product ID: 254656716

Details

Brand
JILLMO
Colour
silver
Material
Stainless
Product dimensions
8.6L x 8.6W
Style
4 Stainless

🧪BPA-free airlocks for safe fermentation

♻️Reusable silicone grommets included

🛡️Durable stainless steel lids

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Description

🥒 Elevate your fermentation game—because your jars deserve the best!

EFFORTLESS FERMENTATION SETUP - Transform any wide mouth mason jar into a pro-grade fermenter in minutes—no daily burping required.
BONUS GROMMETS FOR WORRY FREE USE - Extra silicone grommets included so you’re always ready to keep your fermentation game strong.
UNIVERSAL FIT FOR WIDE MOUTH JARS - Fits standard 3.38" (86 mm) jars from 8 oz to 64 oz, perfect for everything from kimchi to kombucha.
BUILT TO LAST WITH PREMIUM MATERIALS - Stainless steel lids and flexible silicone grommets ensure a clean, sturdy, and reusable fermentation experience batch after batch.
PEACE OF MIND WITH 1 YEAR REPLACEMENT - Enjoy a risk-free fermenting journey backed by a 1-year free replacement on small parts.

The JILLMO Fermentation Kit includes 4 stainless steel lids, 4 BPA-free airlocks, and 4 silicone grommets designed to fit standard wide mouth mason jars (8 oz to 64 oz). This durable, reusable set offers an easy, no-burp fermentation process with bonus grommets and a 1-year replacement guarantee, making it the perfect upgrade for home fermenters seeking reliability and style.

Specifications

ASIN	B075LRMRDQ
ASIN	B075LRMRDQ
Best Sellers Rank	#20,696 in Kitchen ( See Top 100 in Kitchen ) #352 in Storage Jars & Canisters
Brand Name	JILLMO
Closure Type	Clip-On
Color	silver
Customer Reviews	4.6 4.6 out of 5 stars (4,455)
Customer reviews	4.6 4.6 out of 5 stars (4,455)
Date First Available	20 December 2017
Included Components	airlock, grommet, lids, seal
Is Discontinued By Manufacturer	No
Is the item dishwasher safe?	Yes
Is the item microwaveable?	No
Item Dimensions L x W	8.6L x 8.6W centimeters
Item Weight	0.6 Pounds
Item model number	43178-147305
Manufacturer	JILLMO
Manufacturer	JILLMO
Manufacturer Part Number	43178-147305
Material Type	Stainless Steel
Model Number	43178-147305
Number of Pieces	4
Product Dimensions	8.59 x 8.59 x 3 cm; 272.16 g
Product Style	4 Stainless Steel Lids
Shape	Round
UPC	606829878778
Unit Count	4 Count

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