Oh, never mind…
(Note to self: read to the end of threads…)
Or the more effective compromise, DIY food-grade “washing soda” (sodium carbonate), which one can easily make by heating baking soda (sodium bicarbonate) in a a shallow layer in a low oven for a couple of hours. It’s significantly more basic than sodium bicarb, but not dangerously so like undiluted lye…
