Sourdough Starter Jar Set
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Full Proof Baking’s sourdough starter jars are the best way to help you maintain an active sourdough starter. Specially designed for small-scale starter maintenance and levain building, our 10-ounce borosilicate glass jars allow you to more easily track your starter’s activity level and measure its growth and development.
Along the side of the jar you'll find graduated markings of a centimeter ruler to help you determine your starter's rise throughout its fermentation - you can easily tell if your starter has doubled or tripled in volume, or more! On the other side is a handy thermometer which can help you determine where best to store your starter. Rubber bands are also included to help gauge starter rise in the jar.
Jars come in a set of two. Jars measure 10.5cm in height and 6.7cm in diameter.
Kim P.
Awesome helps in sour dough baking!!
Rebecca L.
Excellent jars for your starter! Previously used weck jars but love having the easy ratios/lines to track rise.
Rachel S.
Here are my 2 loaves of bread proofing in the oven. I’ve used Fullproofbaking instructions for building starter for a couple years now and they have proven to be consistently effective for me. Before finding this method i was wasting a lot of flour and accumulating a lot of discard. Not anymore! After using small canning jars to grow my starter over these 2 years, I can appreciate the jars in the starter kit. They are excellent. If I were to make any suggestion, it would be to sell a “jar” spatula that has a longer handle than the typical spatula. I love this website and find it is excellent for trouble shooting. Instructions are always clear and precise.
Kay L.
The jars are great and I love the micro feeding concept. I do understand that the research, development, and production was costly but the price plus shipping was a bit much. I am happy I ordered them however and they are working nicely.
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Stephanie C.
LOVE your jars for micro feeding my starter. So easy for reading the black writing too! I use every single day! Thanks so much!
Steven S.
Great attention to detail. Nice company.
Karen G.
I love these jars, perfect fit micro feedings.
Colleen W.
The jars are so easy to use and I love the lines.
Michael V.
These are great!
Laura K.
Love this product. Huge help to bakers who love their sourdough starter
Joanna D.
Easy to order, fast shipping, exactly as described. It wasn't cheap but it has made it easier to keep my sourdough discard amounts down.
Susan W.
Fast shipping and amazing quality! Making it easier for this sourdough beginner.
Véronique B.
Amazing jars! Easy to wash and you can even write notes on it!
If you worry about international shipping, don't be: mine arrived fine and the packaging is really professional.
Marie L.
A lot of detail has gone into the design of these starter jars which makes them practical to use in the home kitchen.
Gabriel O.
I got the two container set. The packaging is very good, they have done their work there. In my case the shipping time was a bit long but I’ll put that down to the COVID-19 difficulties. I like thermal strip.
Caleb L.
Made by a baker for bakers. A super high-quality product with a keen attention to detail. It works really well for microfeeds (5g starter, 15g water, 15g flour). Don't forget to alcohol swab (as instructed) the jar before adhering the temperature strip or it won't adhere completely. I made the mistake of not listening, and the temp strip only adheres on one side, flapping about. Having said that, it still survives the dishwasher. In fact, after one wash, the temp strip readhered itself completely. Truly a product built to last.
Bill F.
The sourdough starter jar set is convenient and practical due to the right size and measurement features. It makes measuring the culture growth and room temperature a breeze and worth the cost.
Jessica T.
Really happy with the jars, the labels on the side make it easy to see how active it is and I like that it's small and wide-mouthed.
Kathryn R.
Love how neat and organized they are. Makes everything look very clean
Zach F.
The quality of the material is wonderful, and the detailed markings on the sides of the jars make it so easy to get accurate measurements. I'm also really glad they come in a two pack to make my feedings easier.
Scott A.
As Willie Nelson sang, "Little Things Mean A Lot." 'Micro-feeding' Trixie, my sourdough starter, is producing massive, robust, and bubbly results. I feed Trixie twice daily using a 1:5:5 ratio (5g of Trixie, 25g of filtered water, & 25g of a mixture of Carinspring Mills organic whole-grain Expresso and Trailblazer Yecora Rojo (13 - 14% protein).
The Full Proof Baking Starter Jar Set is perfect for this small-batch feeding routine. Before Kristen introduced me to micro-feeding, Trixie was on a 1:1.3:1.3 diet -- 100g of Trixie with 130g of water and flour. Not only did this require huge containers, but it produced excessive amounts of daily discard, and I can only eat so many pancakes and crackers.
Thank you, Kristen. You should see Trixie now that she's grown up.
Margaret S.
These jars are perfect for keeping a small starter like I do, and for measuring growth during bulk fermentation! I love the pre-printed centimeter ruler on the side especially.
Nhy n.
I love this product so much it's perfect
Pam N.
This is the second set of jars I have bought. I love mine so I bought a set for my daughter-in- law for Christmas. I was so happy to learn about micro feeding and the markings on the jars make it so easy! I bake bread maybe once every week or two so I like that these jars take up so little space in the refrigerator when I’m not actively feeding every day. Even the packaging they are shipped in is perfect! Very happy with this purchase.
Pei chin T.
Very convenient and easy to feed my starter now .i so surprise it come with thermometer . Thanks
Amanda G.
Love these! So convenient to have this pair of jars for feeding my starter.
Elaine B.
Great
Vincent L.
I am very pleased with the purchase of these two high quality jars. I am using them to culture my small sourdough starter daily, which usually around 60 g. These jars are too small for my 170 g levain buildup, especially with a triple rise but I have a bigger jar for that purpose. I hope you will also consider making other sourdough supplies for home bakers. Thanks for offering these high quality glass jars.
tiana h.
Great size, works well, happy baking!
David S.
Looks great, but I am holding as a gift to the baker.
Rainu L.
The most amazing sourdough starter jars I have ever used, I love the thermometer sticker that tells me the exact temperature and all the details, they are everything they claim to be. I am very very happy with the product. I will definitely recommend those jars to all my baking friends.
John L.
Great jars, the right size to control fermentation.
Thanks again.
Ms. G.
Finally, the perfect sourdough starter jars. I think the size is the right one to keep what I personally need for once-a-week baking as well as minimise the amount of discard (the discard I get from 2 jars are enough for my weekend pancakes and hence no wastage). I love the temperature (still have to see how long it will hold after extended use) and the ratios and measurements on the side. I wish I had found these jars sooner, but these have now replaced my bigger jars (mason and weck jars) from before and freed up more space in the fridge!
Andrew B.
Anything that can help determine when my dough is well-proofed is welcome in my kitchen! I use these little jars, with measurement lines and thermometer, every day. The look great, and deserve a special place in my pantry! Thank you!
Jeff B.
Great size for starter jars, especially when using the micro feed approach. The marking lines help determine when the starter has peaked and should be refreshed
Hussain Z.
love them!!! have 8 jars already, and soon there will be more.
Studios1289 S.
Smaller than I thought but the concept works! I’m using 10 grams starter and it is all I need to keep my starter flourishing :-)
John S.
Fantastic product that makes starter maintenance easy and seamless. The straight glass walls are easy to clean, and the ratio chart on the side makes it easy to dial in your mixture based on schedule and temperature. Recommend.
René V.
Very good packaging, both jars are securely packed inside to avoid any possible damage during shipment.
Jars are awesome, and I'm looking forward to use them as soon as possible.
Very happy that shipment arrived to Canary Islands safe and quick, and to contribute with this purchase with girls S.T.E.M. program.
If you're a home baker I highly recommend this set of jars.
Bobbi H.
I am so happy I bought the kit. Feel so organized now that the jars have all the temperature gauge and ratios that takes all the guess work, feeding and maintenance go easy and time saving. Luv your Instagram posts. I just need to work on technique to make the open crumb better.
Barbara A.
I have been using the jars to recreate a starter for the past two weeks. Having all of the right equipment makes it easier and gets more consistent results.
Cat
This is the perfect sized jar to house my starter. I especially appreciate having the thermometer and measurements right on the side.
Tony A.
Hi there,
thank you for the jars, they are great. A big thank you for following up our order when it went astray, we were very happy when it arrived as I purchased an extra set for a gift.
I am trying to understand how to best read and understand the thermometer. I imagine that reading an empty jar (blue and tan bands) is the ambient room temperature and (green) is the actual for the starter ?
I love making wood oven breads, there are so many variables, so these little jars will help in understanding each bake a little more.
Kind Regards Tony Albanese
Hannelore L.
Love these sour dough beakers with lids. I would also love a larger one for pre bake levain when I'm preparing to bake.
Temp scale on the side is so helpful.
Margaret G.
Love these jars! I find the temperature label information especially useful.
diane c.
These jars are perfect! The right size for daily feeding and the markings and temperature gauge make it easy to keep track. Thanks!
Logan S.
Excellent quality starter jar that allows for precise tracking of growth and temperature!
Peter S.
Very well done but smaller than expected
LORI S.
These are beautifully designed. I like the thermometer. I like the easy-to-read markings. I like the black rubber band that marks my starter's growth. They are definitely just for keeping a small starter healthy and happy. It would be nice to have a larger version for making levain. Lastly, I didn't think I would need two. But I do transfer 10% to my clean jar each time I feed it, then add 50 grams water and 50 grams flour (then the remainder goes in my discard jar), so having two has been very handy.
Joe S.
Outstanding sourdough starter!
Chun Y.
Ordered the jar set. It came in beautiful packaging along with a booklet full of useful information about sourdough starter. Been using a mason jar for a long time, this is a huge improvement and big help in learning about the mysterious sourdough starter! So glad this exist!
Laszlo B.
My stiff starter rose over scale… so I think I need to put less starter in the jar to fit in scale it is great to read off readily my starter rise and the temp! May I suggest 2 improvements:: 1: I ferment my starter at 15C so it would be nice to have temp scale with lower minimum. 2: it would be nice to have an airtight container with a lid attacheable to a pressure meter to monitor CO2 pressure… it may be to much to ask…
Walt S.
Love it, makes working with starter so much easier - has the common ratios printed on the side. It's now in my oven set to proof, getting ready for another bake.
Donald W.
Nice packaging and great product. No complaints and happily baking sourdough bread!
Angela R.
I waited months for these jars to roll out and it was well worth it! :) They arrived BEAUTIFULLY packaged and totally express all of the thought and care that went into their design. The accompanying, informative booklet is a handy troubleshooter as I get me going with my new starter.
Thanks Kristen, I love them.
Ana
Patricia R.
Neophyte sourdoughby here. Took ten days, but seeing the fully mature starter batch bubbling up put a smile on my face.
sandra s.
Got my jars in, couldn’t wait to try them out. First time using a success. Love my jars.
Nina Q.
This is exactly what I’ve been looking for!!
Carolina C.
Gorgo, my starter, loves the smooth glass jar "condo" that I got him from Full Proof Baking that I got him recently. And thanks to the thermometer on the side, I can always tell what side of the kitchen he prefers.
Michele G.
I will try it tomorrow for my weekend sourdough bred !!! Thanks for your videos … I am a steady follower … from Quebec Canada !!!
Deborah B.
There’s lots to love: the shape of the jar is perfect. I like the lid, the markings on the jar, the bands, and temp ( though haven’t tried it yet).
The thing I’m disappointed about is the size. For my 3 loaf bake, I need 60g of starter. This won’t work for that. Wish you had a big sized jar on offer!
Craig H.
I love these starter jars! It makes it so easy to see how my starter is doing, the ruler lets me see when my starter has doubled or tripled, and when it falls. The thermometer is really helpful at keeping my starter at a consistent temperature and also to see how temperature affects the activity of the starter. Thank you for making a great product!
Rita R.
This is the BEST!! Takes the guess work out of maintaining your starter.
Rebecca B.
Bought a set for myself and one for my daughter. They really make the feedings so much easier. Really enjoying them. Thank you!!!
Viktoria P.
These jars seem to be made of high quality glass as the starter just slides with ease up to the top! The thermometer makes it easy to know what effect placement has. Using the microwave with the attached down light for the cooktop gives the perfect amount of warmth as shown on that cool little thermometer.
Jill S.
Love these jars. They're the perfect size and so much easier to get al of the discard out than the jars I was using previously. The graduated markings are so helpful also.
Jeannie L.
This is the perfect sized jar. The measurements on the jar were something I always wanted. It makes sourdough baking more pleasant!
Angela H.
The sourdough starter jars from #FullProofBaking are awesome for micro feeding your starter. I love the temperature indicator and the information on the jars. I started using wooden popsicle sticks to stir after feeding which helps get all of the flour moist. I make Kristen’s Seeded Sourdough recipe once a week with great success!
Jolene S.
So helpful
So professional
So quick to arrive
So beautifully packaged.
Romero
This is a great little set of jars. They’re the perfect size for maintaining a not too large starter and the markings and bands allow you to keep easy track of your starter or levain’s progress as it rises. The wide mouth makes for easy cleaning. “Willie Nelson” looks real good and at home in these stylish little jars. I may have to get another set before too long as I branch out with different starter compositions!
Jacqueline W.
Annette L.
Been waiting so long for these awesome jars! I've started doing micro feedings, and these are perfect! If I notice my starter rises faster than usual, the thermometer on the side tells me why. Love that it's made of glass and easy to clean! Will probably buy another set! Thank you for this brilliant invention!
Dora Y.
Will be using shortly
Sarah W.
These are absolutely perfect for small batch baking. Everything worse available out there is simply too large. We had been using a small glass mason jar, but there was always some starter or discard getting stuck on the rim. The flat design of these containers makes it much simpler and cleaner to feed and take out starter or discard. I suspect they will be easier to clean as well. The thermometer, rubber bands and measurement markings are a bonus!
Andrea D.
I love these jars! It is the perfect size for micro feeding your starter and it’s so helpful having the measurements on the side! Plus, I think it looks cool sitting on my counter!
Jose P.
Great product, awesome starter producing nice breads!
Scott M.
Absolutely love the aliquot jars! Just may get a couple more!!
Trinh N.
I bought the starter kit in December as a gift for myself and I could only start using it now. I’m really satisfied of this purchase. The shipping was really fast, it took only a week and I live in France! I’m now doing my sourdough from scratch and it is really easy to check its growth and the temperature at home. I also use it to check the leavening of my pizza dough when I’m baking.
There is nothing to complain with this jars, I got a mail about the issue concerning the temperature gauge and it is true that it comeout a bit, but I know that if I have to replace it, it will only take me a mail to the customer service to settle the matter. One last thing... I really appreciated that we can also find a free tutorial for the sourdough, I’m following it step by step.
Quentina S.
Wonderful product. Lines/measurements are easy to read. The thermometer really helps me find the perfect spot for my starter to hang out in. Easy to clean!
Kelly M.
Looks a little cool in my kitchen right now, so I’ll try a proofing box suggestion. So excited! It’s so easy to see how the starter is progressing. Gave one jar to my sourdough baking friend. We are trying these together!
William L.
Nice jars!
Josh C.
Maybe add a little spatula to the bundle as I had to buy one separately to fit inside. Love the product!
Janet P.
I think it is going to be great. It just arrived Friday. I was hoping for larger as I use 200 grams when making great as always make larger loaves.
Lorena P.
I really loved the two jars and starter set. They thought of everything makes it easy to use since everything the ratios, temperature is clearly marked on the jars. My starter is doing great after a week and i will soon try baking a loaf. It came in great packaging with instructions and some information and history of yeast starter. I would recommend this for anyone who wants to start one or who already has one going and wants great jars to tell you the temperature without guessing. ❤
Riani K.
I really love my new jar! Particularly the thermometer on the side, because I don’t have a digital thermometer so checking the temperature is so much easier. I also really appreciate the ratio measurements on the side (any excuse not to do math!) I always follow full-proof-baking YouTube videos when I bake my sourdough bread, so it’s amazing that my favourite baker put this great product out into the world.
Angela G.
This set replaced my weck jar. Bought 2 for myself and 2 for my son. Love the scale which is baked on!
Adriana R.
This set is amazing , has two jars so you always have a clean jar ready to use , that makes the feeding time quicker I love the ratio feedings list so you don't have to make the account about how much flour and water you need to the desired ratio , this is great for newish sourdough bakers I loved the tiny black spatula that can get the last bit of starter out of the jar and also you can scrape clean the jar after each feeding oh and has a thermometer just in the side ! so happy to have this set I totally recommend it
Christina B.
Love it! It's great for reviving my starter from the fridge with a few countertop feeds. The thermometer is super helpful, and the quality overall is great. Would buy a larger one for bigger feeds!
Terrie A.
Great quality jar with thermometer but very small. If I am baking more than 1 loaf I have to use a bigger jar. Please make a larger jar!
Wendi C.
Love this set of starter jars! All of the features are very helpful and the packaging was great. Thanks for making starter maintenance easy!
Rob P.
Wonderfully designed jars. Easy to use, easy to clean, tons of info on the sides, and durable. It’s one of those kitchen pieces that feels like dependable equipment rather than decoration. They are sized for micro-feeds, so just keep that in mind. Plenty of space for a small batch’s levain, but you might want a second larger container for the final levain build before bigger batches. It’s a perfect tool/gift for us home bakers!
Nora R.
I've had a successful starter going for four years. I had cobbled together a sarter set up that worked just fine. Clearly, I didn't need a new approach, but I enjoy Full Proof's videos on YouTube and wanted to show my support. So, I bought the jars and they arrived amazingly quickly. In went my reliable starter and I realized how much easier it is to track starter development in a jar with absolutely straight sides and clear lines. And, with the thermal tape, I always know what temperature it is. No more trying to read the tiny numbers on my instant read thermometer. I appreciate that the jar is glass, rather than polluting plastic. I plan to buy a supply of jars so I can include them with my own starter as gifts. Thanks for this great product.
Carlo P.
As soon as I saw the design of Kristin's sourdough jars I knew I wanted to have a set.
I have two other sets of starter jars. I am always looking to improve my systems when I cook or bake.
What I like about Kristin's set of starter jars is the cleaning, measuring , tracking and the recording of information is so easy. What really supported me was the smaller size. The smaller size encouraged me to try different feeding ratios. I now use regularly 1:5:5 or 1:8:8
I like the different ratios in part because I do not discard as much starter as I use to.
Using different ratios helps me modify the flavor of my sour dough as well.
All the best
Carlo Proto
Debra B.
Perfect size for micro feedings. The container is a nice heavy weight glass that should survive any accidental drops. It has nice straight sides for easy access to stir everything together and the added bonus of a screw tip lid. At one glance I can see my starter’s temperature, how much it’s grown and how lively it is. (This photo is only 1:1:1 using 5 grams each as I plan to feed her a couple more times before using her. )
I have used various containers for my starters from fancy weck to recycled glass jars. I’ve noticed the larger my vessel the more I want to feed my starter. I’m sure using these 9 ounce babies will help keep things manageable when only baking 2-3 loaves.
Monique A.
Love, love, love these jars!! These are the most thoughtful starter jars that have both the beginner and advance bakers in mind. What I especially love are the straight walls, making it easy to mix the starter and to clean. Also the size is perfect - not too wide and not too tight. My starter and I are quite happy. Thank you, Kristen!!
Elsie A.
I love these jars!! It came in record pandemic-shipping speed, arriving on Christmas Eve which was a lovely surprise. I’ve used all the functions of the jar, from using the thermometer to measure my oven-with-the-light-on temperature, to writing down my notes, and I can’t begin to express how helpful the ratios are!
Sara
These jars are of great quality and craftsmanship. I (and my starter!) couldn’t be happier!!
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