Platinum Instant Sourdough Yeast - 5 Packets

I bake bread occasionally and sour dough bread even more rarely. So making a sour dough starter for an occasional loaf is frankly too much effort. So this product seems like just what was needed. It performed wonderfully and provided a beautifully risen dough with a nice tang of sour dough. Just follow the directions and let the dough proof at least 18 hours in the fridge (go to Red Star’s website and see the extended directions for using this product). I saw one comment that mentioned their dough barely rose and they added yeast. My dough quadrupled in size after the first two hours of proofing and the resultant bread was beautifully light. I would recommend against adding any yeast. Another comment said this product turned their bread brown-the yeast/culture mixture comes out of the packet very brown. But this small amount of product did absolutely nothing to color my loaf (a one pound loaf made with 2 cups Kamut flour and 1 cup of bread flour). Reading through Red Star’s recipe I am assuming that one packet of this yeast/starter would service about four cups of flour. The sour dough flavor was noticeable and pleasant-more than enough for my wife and myself (the 18 hours in the fridge really develops the flavor). I presume if you make a starter from scratch and then add a huge amount to your recipe you might achieve a deeper sour flavor. But for us this was more than sufficient. So for you occasional sour dough bakers give this excellent product a try-be a bit patient, follow the directions provided by the Red Star company on their website and you will be amazed at the results.

This item is a huge disappointment. I am an experienced bread maker and tried to use this yeast for my sourdough artisan bread. No matter what i did the dough didn't rise. I've never ad this issue wiht other brands of yeast so my assumption is it's this particular brand. Don't waste that huge amount of money!

Platinum Instant Sourdough Yeast is my secret for a delicious homemade sourdough in just 3 hours In the Kitchen with Lulu! It gives that classic sourdough flavor with a beautiful rise and soft, airy texture — without the long starter process. Reliable, easy to use, and perfect for busy bakers who still want that authentic sourdough taste. 🍞✨

I make sourdough bread all the time. What I have found with this product is that it is easier to use than maintaining your own starter and it works just as well if you let it rise overnight in the fridge. The bad thing is that not all their packets are useable . I always proof them before adding it to the flour. That means adding a little sugar, flour and spring water ( about 90 F ) to a coffee mug, placing it in the oven with light on for about 20 minutes. If it bubbles up the yeast is good. In the past I have had to throw out several packets because the yeast was dead. That is unfortunate because it’s rather expensive. So buyers beware not all the packets are usable. I don’t know where the mistake is made in the manufacturing process but to be sure you don’t waste your bread proof beforehand.

This yeast has been a game changer for making sourdough bread. I've been using this yeast for a few years, and I've never had a failure. It's so convenient; everything you need is inside the packet, so no need for making your own starter.

The first pak of 5 worked good. I may have had one that didn't. I blamed old flour. The ones that worked, worked great! Great bread. Used their recipe. Easy. In the second pak of 5 the very first one didn't work. Dough did not rise. I saved the dough by proofing some other yeast and adding it to the dough that didn't rise. That worked. ' Also, I placed my order in August of 2025 and the expiration date on the Platinum yeast was Sept. of 2025. That's too near expiration. Plan to use soon. In the future I will proof the yeast before adding it to the dough mix. My local stores do not carry this yeast.

This used to be a grocery store staple but now it's been discontinued. I use it to start my sourdough starters and give a lift to a loaf of heavy whole wheat bread. I bought 5 to put in the freezer it should last me about 5 years since I only use 1 packet a year.

The bread not only did not rise but felt like it weighed 5 plus pounds. When I sliced it, it was too doughy and did not taste cooked. I wish I looked at the reviews a head of time because they are accurate.