TOMO Fermentation Crock 7L - Ceramic Sauerkraut Pickling Crock with Weights & Wide Waterlock

TOMO's 7L stoneware fermentation crock is a durable, fully glazed ceramic vessel with an extra-wide waterlock and included weights for reliable, oxygen-free sauerkraut, kimchi, and kombucha fermenting at home.

If you enjoy making traditional fermented foods or want a dependable vessel for small-batch kombucha, this TOMO 7-liter crock blends classic crock design with modern details. The fully glazed interior keeps odors and stains away while the wide water seal lets CO2 escape and prevents air contamination. It ships with two ceramic weights and a wooden tamper so you can press vegetables and keep brine coverage consistent.

How does the TOMO crock keep ferments submerged and oxygen-free?

The crock uses an extra-wide waterlock channel to create a continuous moat around the lid. That water barrier allows fermentation gases to vent while blocking oxygen and airborne microbes, lowering the risk of spoilage without daily attention.

• wide waterlock channel reduces frequent refilling
• two included weights press produce below the brine
• water seal traps CO2 while keeping air out
• deep interior keeps brine level steady during active bubbling

What makes TOMO's ceramic better than glass or plastic for fermenting?

TOMO stoneware is made from natural earthenware and finished with a non-porous glaze, so it resists crazing, odors, and stains that can affect flavor over time. Ceramic also shields fermenting contents from UV light and maintains a stable environment, which is helpful for long, low-temperature ferments.

• fully glazed interior prevents absorption and lingering smells
• thick ceramic walls insulate and reduce temperature swings
• UV-blocking material helps preserve enzymes and color
• durable build is designed for repeated use and cleaning

How much will the 7L crock produce and how is it used for kombucha?

The 7-liter size is ideal for small family batches—roughly 5–7 cabbages worth of sauerkraut or about a dozen pint jars when packed. For kombucha, it functions as a mid-size fermentation vessel; its glazed surface is easy to sanitize and the waterlock makes it suitable for low-pressure SCOBY work when monitored.

• 7L holds approximately 2 gallons / family-sized batches
• fits 5–7 medium cabbages for sauerkraut yields near 12 pint jars
• includes two weights plus wooden tamper for packing produce
• works for kombucha when using careful SCOBY handling and airflow control

How do I care for this stoneware to keep it performing well?

Cleaning is straightforward: wash with warm, soapy water and avoid abrasive scrubbers that could scratch the glaze. Store dry between uses and inspect the seal channel before each batch to ensure no debris compromises the waterlock.

• hand wash with mild detergent; avoid dishwashers when possible
• dry thoroughly to prevent mineral deposits in the water channel
• check weights and tamper for chips or cracks before use
• store lid and crock separately or with a light cloth to protect the glaze

Who is this for? The TOMO 7L fermentation crock is built for home fermenters who want a reliable, restaurant-grade stoneware vessel without the fuss of frequent maintenance. It suits hobbyists making sauerkraut, kimchi, pickles, or kombucha who value a durable, glazed interior and an effective waterlock system. If you need a mid-sized, long-lasting fermenting crock that keeps brine stable and flavors clean, this model provides an easy-to-use, low-attention solution.