Not every single thing is mentioned when you check the official specifications of some bread machines. For example, most manufacturers will mention the preheat cycle only if it takes 10 minutes or less. You might be surprised, but some other units may take up to 60 minutes for this cycle. At this point, the machine becomes unacceptable. You do not want to spend the whole day waiting for this cycle to be over. The white bread cycle is worth some attention too. It should barely exceed three hours – not more. Get these details from the manual or the unbiased reviews at DoughBreadMakers.