Hand made at Sonnyboy Studio by us using a two-part water-based gypsum acrylic compound. This material is non-toxic, safe to use and VOC (volatile organic compound) free, though not recommended for direct contact with food in Australia. If your product is sealed with epoxy, then it can be used safely for food (all spoon rests are coated with resin to make sure they are safe, you must request resin for anything else you order).
After homewares are cured, sanded and sealed with a permeating sealant and an acrylic sealant, or two-part epoxy resin, they become somewhat impact-resistant, water-resistant, heat and UV resistant.
In summary: don’t drop them on the concrete, they might break. You can put hot things on them like candles and cups of tea and they won’t break. You can only put food directly on them if you request a resin coating to your order.