How to Use 120g (0.50 Cups) Sourdough Discard in Same-Day Sourdough Discard Focaccia
Zero-waste baker's math to fold 120g of unfed sourdough discard into same-day sourdough discard focaccia without making the batter gummy or runny.
Folding 120 grams (0.50 cups) of 100% hydration discard into Same-Day Sourdough Discard Focaccia injects 60g pre-fermented flour and 60g water. To preserve batter viscosity on a 500g flour / 400g warm water base, weigh 440g fresh flour, 340g warm water, and 0.6g sodium bicarbonate before cooking at 450°F (230°C) for 22–25 min.
- Subtract Recipe Flour
- -60gUse 440g instead of 500g
- Subtract Warm
- -60gUse 340g instead of 400g
- Acid-Neutralizing Soda
- 0.6gReacts with discard lactic acid for CO2 lift
- Cook / Bake Spec
- 450°F450°F (230°C) for 22–25 min
120g Discard in Same-Day Sourdough Discard Focaccia: Line-by-Line Substitution Table
Soda column assumes the balanced 1.2g per 100g of discard dose; halve it for a pronounced tang.
| Starter Ratio | Flour Inside 120g | Water Inside 120g | Use This Flour | Use This Warm Water | Baking Soda |
|---|---|---|---|---|---|
| Batch line 110g / 125% [Your Jar] | hidden flour 48.9g | hidden water 61.1g | keep 451.1g flour | keep 338.9g Warm Water | add 0.6g soda |
| Batch line 140g / 75% One Step Down | hidden flour 80g | hidden water 60g | keep 420g flour | keep 340g Warm Water | add 0.7g soda |
| Batch line 120g / 100% One Step Up | hidden flour 60g | hidden water 60g | keep 440g flour | keep 340g Warm Water | add 0.6g soda |
| Batch line 100g / 100% Two Steps Down | hidden flour 50g | hidden water 50g | keep 450g flour | keep 350g Warm Water | add 0.5g soda |
| Batch line 130g / 50% Two Steps Up | hidden flour 86.7g | hidden water 43.3g | keep 413.3g flour | keep 356.7g Warm Water | add 0.7g soda |
Interactive Sourdough Discard Gram Converter Calculator
Compare your exact mixing bowl dimensions, flour protein percentage, or discard weight in real time.
Food Chemistry: Why 120g of Unfed Discard Improves Same-Day Sourdough Discard Focaccia
Hydration is the variable most discard recipes ignore. Adding 120 g of 100% hydration discard to a 500g flour base contributes 60g of water, so the effective hydration of the finished batter is not 80% at all — it is the ratio of 340g liquid to 440g dry flour.
Starch retrogradation is the enemy of discard-heavy bakes. The 2g of residual acid in the discard slows starch retrogradation and keeps the crumb moist for longer, which is exactly why discard same-day sourdough discard focaccia stays tender on day two while conventional versions dry out.
How to Mix Same-Day Sourdough Discard Focaccia with 120g Sourdough Discard
- Recalculate the Salt: Your 120g of discard was salted when it was last fed, so use slightly less salt than the original same-day sourdough discard focaccia recipe calls for.
- Mix Discard into Flour (440g): Toss 440g of flour with the 120g of discard until every lump is coated.
- Add Liquid Gradually (340g): Pour in 340g of warm water a little at a time until the batter comes together.
- Add 0.6g Soda and Cook: Stir in the bicarbonate, let it foam briefly, then take the same-day sourdough discard focaccia to 450°F (230°C) for 22–25 min.
Frequently Asked Questions for This Sourdough Discard Gram Converter Spec
Can I make this recipe with 60g of discard instead?
Halve every weight: 30g of flour and 30g of liquid come out of the base recipe, and you need 0.6g of baking soda.
How long should I rest the same-day sourdough discard focaccia batter after mixing in discard?
Ten minutes is the sweet spot at room temperature. It lets the 0.6g of bicarbonate finish neutralising the discard's acid while the 440g of flour hydrates around the 340g of liquid.
Can I use 120 grams of active bubbly starter instead of unfed discard for same-day sourdough discard focaccia?
Yes. Active starter and unfed discard carry the same hydration by weight (60g flour + 60g water), though active starter will also begin proving the batter. Always measure 120 grams on a digital scale rather than by cup volume (0.50 cups).