Sourdough Starter Kit — 34 oz Glass Jar, Silicone Proofing Baskets & Baking Tools

Hand-packed in Newport Beach. Orders by 3 PM PST ship in 1 business day. 30-day returns.
$45.80

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Ships within 1 business day
30-day returnsHand-packed in CaliforniaSpecs verified November 2026
Style: Bread Baking Set
Free U.S. shipping over $40 · 30-day returns · Hand-packed in Newport Beach
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34 oz Glass Jar

A sourdough starter kit puts the jar you feed every day and the tools you bake with in one box. This one has a 34 oz wide-mouth glass jar with a thermometer strip and a feeding tracker band, two food-grade silicone proofing baskets, a silicone bread sling and the hand tools for mixing, shaping and scoring a loaf.

What is in the kit

  • 34 oz wide-mouth glass jar. Aluminum lid, cloth cover, a stick-on thermometer strip and a tracker band you slide to mark the last feed and the rise.
  • Two silicone proofing baskets. Round 9.4 x 3.7 in and oval 9.8 x 6.3 x 3.5 in, with cloth liners. They fold flat, go in the dishwasher and are heat resistant to 446°F.
  • Silicone bread sling. Long handles for lowering dough into a hot Dutch oven and lifting the loaf back out.
  • Hand tools. Danish dough whisk, stainless steel dough scraper with a wooden handle, flexible bowl scraper, bread lame with spare blades, 11 in silicone spatula, silicone pastry brush and a wooden basket brush.
  • For the finished loaf. A cotton drawstring bread bag and a short baking guide.

How to use it

  1. Feed the starter in the jar and mark the level with the tracker band.
  2. Mix the dough with the Danish whisk and clear the bowl with the bowl scraper.
  3. Divide and shape with the bench scraper.
  4. Proof the dough in a floured basket.
  5. Score with the lame, lower the loaf on the sling and bake.
  6. Keep the cooled bread in the cotton bag.

Details

Jar Glass, 34 oz, wide mouth, aluminum lid
Round basket 9.4 x 3.7 in / 23.9 x 9.4 cm
Oval basket 9.8 x 6.3 x 3.5 in / 24.9 x 16 x 8.9 cm
Basket material Food-grade silicone, foldable, dishwasher safe, heat resistant to 446°F
Spatula Silicone, 11 in / 28 cm
Bread sling Silicone with long handles, BPA free
Tools Danish whisk, steel dough scraper, bowl scraper, lame with blades, pastry brush, basket brush

Questions

Does the kit include a live starter?

No. It has the jar and tools. You make the starter yourself from flour and water, which takes about a week of daily feeding. Our 7-day sourdough starter guide walks through each feed.

What size jar do you need for sourdough starter?

A jar of about a quart gives the starter room to double. This one holds 34 oz and the wide mouth makes stirring and cleaning easy.

Are the proofing baskets rattan?

No. Both baskets are food-grade silicone. They keep the ridged banneton pattern but fold flat and can go in the dishwasher.

How long does sourdough starter last?

Fed regularly, a starter can be kept going for years. In the fridge it needs a feed about once a week.

  • 34 oz wide-mouth glass jar — aluminum lid, cloth cover, thermometer strip and feeding tracker band
  • 2 silicone proofing baskets — round 9.4 x 3.7 in and oval 9.8 x 6.3 x 3.5 in, with cloth liners
  • 1 silicone bread sling — long handles for lowering dough into a hot Dutch oven
  • Hand tools — Danish dough whisk, stainless steel dough scraper, bowl scraper, bread lame with spare blades, 11 in silicone spatula, silicone pastry brush, wooden basket brush
  • 1 cotton drawstring bread bag — and a short baking guide

Free standard shipping on orders $40+. Ships within 1 business day. Standard 3-5 days, express 2-day available at checkout.

The silicone proofing baskets fold flat, are dishwasher safe and are heat resistant to 446°F.

1-year limited warranty against manufacturing defects. 30-day returns from your order date. If your kit arrives damaged, email us a photo and we'll replace it.

Free shipping over $40 · Ships in 1 business day
Sourdough Starter Kit — 34 ...
$45.80
1

A closer look

A 34 oz glass starter jar, two silicone proofing baskets and the hand tools for each step of a sourdough bake.

Sourdough starter kit: glass starter jar, scored loaf and silicone proofing basket
Made for daily feeding: 34 oz wide-mouth jar, baskets fold flat, dishwasher safe
From jar to oven in four steps: feed the starter, mix, proof in the basket, score and bake
Track every feed: tracker band marks the rise, stick-on strip shows the warmth, cloth cover lets the starter breathe
Proof in the silicone basket, score with the lame, lower the dough into a Dutch oven with the silicone bread sling
A tool for each step: Danish whisk and bowl scraper to mix, wooden brush to clean the basket, cotton bag to keep the loaf
Sourdough starter kit details: basket sizes, food-grade silicone heat resistant to 446F, 34 oz jar, 11 in spatula