Rakovar 57oz Sourdough Starter Jar Set of 2 — Large Wide‑Mouth Fermentation Jars with Measurement Scale & Temperature Bands

The Rakovar 57oz Sourdough Starter Jar Set of 2 is a pair of large, wide‑mouth borosilicate glass jars designed for cultivating and storing sourdough starters, with measurement scales, feeding bands, temperature strips, cloth covers and airtight lids.

Whether you're keeping two different starters, scaling up for weekend bakes, or just want tidy pantry containers, this set gives you two roomy, heat‑resistant jars built for fermentation and food storage. Clear volume markings, feeding and temperature bands, plus two lid options make it easy to manage activity, timing and refrigeration without transferring starter between vessels.

How does this jar set simplify daily sourdough feeding?

The wide mouth lets you stir, scrape and measure starter without spills or awkward tools, while the included feeding bands let you log feedings and mark starter levels at a glance. You can keep one jar active and one in reserve or track growth after each feed for a clearer routine.

• Large 57 oz capacity supports multiple feeds or larger starter quantities.
• Clear measurement scale printed on the glass for accurate volume checks.
• Reusable feeding bands to note dates and starter height for easy tracking.

Which lid should I use during fermentation versus storage?

Use the breathable cloth cover during active fermentation to allow gases to escape while keeping dust out; switch to the airtight aluminum lid when storing the starter in the fridge or using the jar for dry goods. The two lid types let you adapt the same jar for both rising activity and long‑term preservation.

• Cloth covers promote gentle airflow for fermentation and prevent contamination.
• Airtight aluminum lids lock in freshness for refrigerated storage or pantry use.
• Simple lid changes mean no messy transfers between containers.

Can these jars do more than hold sourdough starter?

Yes — the jars are made from durable borosilicate glass that resists thermal shock and won’t absorb odors, making them suitable for storing flour, grains, cereal, snacks and prepared foods. Their clear walls and measurement markings keep pantry items visible and portioning precise.

• Borosilicate glass resists staining and handles temperature changes well.
• Generous capacity makes them useful as bulk storage containers.
• Clear labeling and bands let you repurpose jars for inventory or meal prep.

How do the temperature and measurement features help fermentation?

The adhesive temperature strip provides a simple way to monitor ambient conditions that influence starter activity, and the printed scale helps you quantify rise and discard amounts. Together these features reduce guesswork so you can adjust feeding intervals or storage based on observed behavior.

• Temperature strip offers quick visual reference for fermentation environment.
• Measurement markings let you compare pre‑ and post‑feed volumes easily.
• Feeding bands help you record times and keep consistent schedules.

Who is this for? Home bakers who keep one or more sourdough starters, hobbyists scaling batches for family or small events, and anyone who wants multi‑purpose glass storage that transitions from fermentation to pantry use. If you prefer clear visual tracking, easy cleaning, and flexible lid options — this Rakovar set gives two resilient jars that streamline feeding, storing and everyday kitchen organization.