There are a number of Portuguese beekeepers that strive for this purity. They spurn the industrialized processes that sacrifice the bees to extract the honey. They shun the additives used to keep the honey from crystalizing during Winter. Some produce honey from the nectar and pollen of a single flower species, such as eucalyptus, lavender, or rosemary. Others produce multifloral honey, extracted only after the bees feasted on flowers from all seasons, from the wild flowers that bloom after the Winter rains to the fleeting pumpkin flowers that bloom only for a day.
It takes a little effort to find this superior artisan honey. It is mostly sold in farmers markets (one of our favorite producers, Miguel Evaristo, sells his honey at the Lourinhã fair on the last Saturday of each month). But, once you buy it, you can take your time enjoying it. It is good for 2,000 years.