Natural wool construction: Provides effective insulation to maintain optimal fermentation temperature
Fits wide mouth and regular mouth jars: Versatile compatibility for various mason jar sizes
Handmade in the United States: Ensures quality craftsmanship and supports local artisans
Inspirational quotes stitched on: Adds a personal touch and aesthetic appeal to your ferment
Snug fit with easy on/off: Allows convenient access for monitoring or cleaning
Product: Natural wool cover insulator for all mason canning type jars. Beautifully handmade and a perfect addition for any ferment. Looks stylish anywhere in the house.
100% Natural wool
Fits either wide-mouth or regular-mouth jars
Size options for pint, quart or half gallon jars
Handmade in the United States
Helps insulate the fermen
Material
100 percent natural wool
Fits
Wide mouth and regular mouth mason jars
Available sizes
Pint, quart, half gallon
Color
Gray
Pattern
Solid
Care
Wash on delicate, cold air dry
5.0
3 ratings
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1
Love this!
Works very well keeping my kefir at a good temperature! It is hot in my house in the winter from the woodstove and my kefir has been doing great!
A
Amber · January 25, 2026
Great for kefir
I use these covers for my kefir making. My home is cool in the winter and these covers work wonderfully for keeping my kefir at a steady temperature. High quality. Highly recommended.