. Circular. Agriculture; Agriculture -- United States. 6 PEANUX., BUTTEE. ever, must be determined by the judgment and experience of the operator. In tlie model factories the peanuts are elevated to a hopper over the roasting machine and are fed by gravity through a chute into the end of the roasting drum. When the roasting is completed the drum is dumped directly into the portable cooler having a perforated bottom. This is then wheeled to an opening in a suction blast pipe, and cold air is pulled downward through the roasted peanuts in order to cool them quickly. The quality and flavor of pea
. Circular. Agriculture; Agriculture -- United States. 6 PEANUX., BUTTEE. ever, must be determined by the judgment and experience of the operator. In tlie model factories the peanuts are elevated to a hopper over the roasting machine and are fed by gravity through a chute into the end of the roasting drum. When the roasting is completed the drum is dumped directly into the portable cooler having a perforated bottom. This is then wheeled to an opening in a suction blast pipe, and cold air is pulled downward through the roasted peanuts in order to cool them quickly. The quality and flavor of peanut butter depend largely upon the care exercised in roasting. Some markets prefer a "high" roast,. Fig. 1.—A roasting and cooling equipment in a modol peanut-buttor factory. while others want a very " mild " roast. If the roasting process is carried too far the butter will have a dark-brown color and a burned or bitter taste due to the carbonizing of the fats and cell tissue. Wliere peanuts are grown large quantities are eaten raAv. While no careful digestion experiments have been reported with raw and roasted nuts, there is a belief, borne out by data collected by the Department of Agriculture in its nutrition studies, that the raw and medium roasted nuts are less likely to cause digestive disturbance than those that are parched or overroasted. However, as with other foods, individuals will be found avIio can digest the raw product without trouble and to whom the roasted ones are not so wholesome, [Cir. 08]. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States. Bureau of Plant Industry. Washington, D. C. : U. S. Dept. of Agriculture, Bureau of Plant Industry
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