Every time I whisk egg whites to make perfect stiff peaks, I think of my Aunt Louise, who, alongside her husband, were egg producers.

One day she confessed that she was having trouble getting her egg whites into “firm snow peaks”. Early on in my life I had a fascination for baking and cooking, and I became interested in this problem and I discovered, OMG, that my aunt’s new plastic bowl (Tupperware) was the cause. Indeed, plastic is the enemy of the egg white.