Drain the seeds. Place the refreshed starter and all the remaining ingredients plus the drained seeds into a big bowl and knead well by hand or machine for 10 minutes. Cover the bowl with a shower hat and let it rest for 2 hours. During that time, if you can be bothered, stretch and fold it a few times to develop the gluten.
Generously flour a medium sized (around 800 g) round proofing basket. Or grease a big bread pan.
Remove the dough from the bowl and place it on a floury work surface. With wet hands and a scraper, gently stretch and fold it and then shape it into the shape you need for your basket or tin. Place the dough in the basket or tin.
Cover it with a shower hat and let it rest for 3-5 hours. It's hard to do the probe test with rye but the dough will have risen a lot and will be soft to touch - your finger tip will easily leave dents in the dough.
Preheat the oven to 230 degrees C. If you have used a basket, turn the dough out of the basket onto a baking tray lined with parchment paper. Pop it in the oven. If you have used a tin, pop it in the oven.
Bake for 10 minutes and then reduce the heat to 200 degrees C and bake for a further 30 minutes.
Remove from the basket and let cool completely on a wire rack.