My soap will not lather no matter what I do. Hard water, or am I the problem?

Bought a well-reviewed triple-milled soap a month ago, the kind people rave about, and I cannot get a usable lather out of it. Load the brush maybe 30 seconds, build in a bowl, and it looks promising, thick and shiny. Then it goes on my face and within a minute it's dissolved into thin soup. Second pass I'm basically shaving with water.

Relevant detail: my water is seriously hard. The kettle furs up inside a month, shower screen is permanently chalky.

Before I bin the soap or buy yet another one: is the water actually the culprit, or is my lather building the problem? Same brush and bowl worked fine with the cream I started on.

Try doubling or tripling your load time before you blame anything else. Hard water basically eats soap, the minerals bind it up before it can foam. 30 seconds is fine for soft water, in hard water I load a solid 60 to 90 off a damp, not dripping, brush. Start drier than feels right and add water a few drops at a time. Disappearing-on-the-face is the classic underloaded sign.

You can settle the water question with a two-minute experiment: boil the kettle, let it cool, and build one lather with that. Even better if you've got distilled water for the iron, one mugful is plenty for a whole shave, brush soak included.

When I did this the difference was embarrassing. Same soap, same brush, same hands: chalky tap water gave me your thin soup, distilled gave me yoghurt. That told me it was never my technique and I stopped buying soap after soap looking for "the one that works".

Not saying shave with kettle water forever, but do the test. Then at least you know which problem you're solving.

This exact problem nearly ended my wet shaving career in month two. Cartridge convert, hard water area, first proper soap, and I concluded I'd bought a dud and that lathering was some dark art I didn't possess. It was neither, it was underloading, exactly as slantcurious says. Hard water just raises the price of entry: longer load, drier start, patience with the water drops.

I ended up writing the process up properly in how to build a lather, including the hard water workarounds, because it's comfortably the most common question in my inbox. Worth a read alongside Rob's kettle test.

And if the soap still fights you after all that, creams are genuinely more forgiving in hard water. No shame in it, a good lather is the goal, not soap loyalty.

Closing the loop. Did Rob's distilled water test: instant proof, the water was most of it. Yoghurt, as promised.

Day to day I now load 90 seconds off a barely damp brush and add filtered water from the jug in the fridge, a few drops at a time. Lather holds through both passes with some left over. Same soap I nearly binned, turns out it was innocent all along. Picked up a tube of cream for travelling though, because apparently that's how it starts.