I freeze my sourdough discard. I defrosted 50g of it overnight then the next day added it to 250g wholegrain flour (home milled), 250g bread flour, 375g water and 10g salt after a 30 min autolyse.
For gluten development I performed one stretch and fold, lamination and 3 coil folds then left to bulk ferment at 28 celcius.
The total bulk fermentation time was 11 hours from when I added the starter to the autolyse. After the last coil fold I waited for the dough to rise 25%.
I also used an aliquot jar and the jar dough had doubled in 11 hours from when I added the starter to the auolyse.
With my active starter it takes 4.5 hours at this temperature, so the discard took a lot longer.
Then pre shaped, shaped and overnight proof in the fridge. Baked in Dutch oven for 50 mins at 220c with convection in a small oven.
I'm very happy with the rise and ear, most unexpected from defrosted frozen discard!