I've been trying to make Limppu bread for weeks now but it never turns out ok. Ive tried 2 recipes that were more or less the same that called for only rye flour, water, and salt. Both of them said to make a starter using rye flour and water, which i did and it smells like beer, which seems right. The it said to mix the starter (100g) with rye four (500g) and water (750g) and let it sit overnight. The i add another 500g flour and 20g salt and let it rise, but it just becomes a dense, heavy mass that doesnt rise at all. Neither recipe called for adding yeast. Im using 100% whole grain dark rye flour. Am I doing something wrong? I cant find any good recipes for traditional Finnish bread, and i don't speak Finnish.