I want to make shampoo bars around 65-100g. The ones I buy from the store are about 6cm diameter, 3cm thick, 65g.
Some ideas:
- DIY press using glue clamps and PVC pipe
- Using a mooncake press – the common 50g ones are probably too small, but a 75g or 100g one would work. The press usually comes with multiple moulds
- Using a rice ball (onigiri) press
- Using a hamburger press
- 3D print a puck mould like this one
Ways to keep the soap/shampoo/syndet bar from sticking to the mould:
- Cling film
- Corn starch
- A drop of oil