1 Stir the heavy cream into the ice cream base.  Chill completely: Leave the ice cream base over the ice water bath, stirring occasionally, until it's completely chilled. This will take about 20 minutes. Alternatively, cover the bowl with the base and chill in the fridge for 3 hours or overnight.
Two other sources of arsenic, especially of some concern for children, is arsenic in groundwater and subsequently, in rice that is grown in such groundwater. Rice is a common food for children but to date, there are no regulations about the levels of arsenic that are considered safe for consumption.
Chronic arsenic poisoning results from drinking contaminated well water over a long period of time. Many aquifers contain high concentration of arsenic salts.The World Health Organization recommends a limit of 0.01 mg/L (10 parts per billion) of arsenic in drinking water.hronic arsenic poisoning results from drinking contaminated well water over a long period of time. Many aquifers contain high concentration of arsenic salts.