Thank you for your advice. I tried adding water, and it was really much better, but there were still some stubborn fragments. I tried steaming before playing, and there is basically no difference. In other words, this apple in Canada is hard and really immature, and a small spoon can't scrape the mud. I'm going to buy a small pot for the baby to try cooking as montrealpost said. Alas, how difficult is it to give the baby apple puree?