Is this safe? Has anyone used nitrous oxide gas in whipped cream? I really don't understand how it works. I was thinking to buy a cream dispenser for a friend who loves to bake. I have seen this review https://bestnangs.com.au/product/purecharge-brushed-aluminium-whipped-cream-dispenser-0-5-litres-capacity fascinated that it was operated by Nitrous Oxide seems an upgraded version of baking equipment. Would you recommend it? Thanks in advance for any suggestions.