Label the discard separately from the starter
- Before feeding, check the established starter and use a clean utensil. Transfer the portion you want to keep for cooking into a clean food container.
- Write the date and, if you bake by weight, the grams and usual starter hydration. Mark the container “discard” so you do not confuse it with the starter you feed.
- Keep it covered and chilled. If you collect several feeds in one container, keep the earliest date and note the total weight. A new addition does not make older discard fresh.
- Take out what the recipe needs using a clean utensil. Plan the recipe before the jar becomes hard to date. [1] [2]
| What the label says | Why it matters |
|---|---|
| Collected 10 Nov | You can trace the oldest portion. |
| 120 g, equal-weight flour and water starter | You can compare it with the recipe’s amount and hydration. |
| Mother starter in a separate jar | You know which culture still needs regular feeds. |
How long does it last in the fridge?
There is no single fridge life that covers every jar. King Arthur gives storage and quality guidance for discard, while Colorado State University Extension explains how to recognise suspect starter and handle raw flour. The date, handling and storage conditions matter. Use the oldest dated portion promptly and choose a recipe appropriate for the discard you have. If you are uncertain about the history or see signs of contamination, throw it away. [1] [2] [3]
A layer of liquid can form on starter. Colorado State distinguishes an alcoholic-smelling liquid from coloured or fuzzy mould. If growth looks suspect or you are unsure which it is, discard the batch. If the mother jar showed mould, discard the starter and any discard collected from it. Clean the equipment thoroughly. [2]
If you know your next recipe uses 200 g, write that target on the lid. It helps you see when you have enough without mixing in another undated portion. Use a separate clean container for a new collection if the older batch has an uncertain history.
Can I freeze discard?
Some baking guides use freezing to store discard for later cooked recipes. Portion it in a freezer-safe container, label the date and grams and follow the recipe’s thawing guidance. Freezing does not make raw flour ready to eat or make a suspect batch usable. Use a fresh feeding routine if you need reliably ripe starter for bread. [4] [3]
Crispy Crust’s planned starter and discard notes would help you link a measured portion to its collection date and source feed. That gives you a more useful record than a jar you have been topping up without dates. When you want to use it, start with the discard recipes by amount grid.
Find a discard recipe by grams available and compare the original recipes before choosing what to make.