Yes! I tested this recipe using both store-bought spelt flour and freshly-milled spelt berries. Both worked great, but the sweetness and nuttiness was more pronounced in the bread made with freshly-milled flour. Fermentation tends to occur at a faster rate when using fresh flour, so just be sure to watch your dough to prevent it from becoming over proofed. I purchased my spelt berries from Azure Standard and ground them using my Mockmill.