An experimental meal of oven cleaner could prove fatal, especially for young children. In fact, statistics show that accidental poisoning by household chemicals puts an estimated 7000 Australians in hospital every year - due typically to bleach, ammonia and oven cleaner being sampled by young children. Vinegar is a mild acetic acid that acts as a disinfectant, bleach, deodorant and anti-mould agent. Salt is an antiseptic and disinfectant. Bicarbonate soda or baking soda is a nonpoisonous powder that is able to gently scour away stains, and helps take away unpleasant smells as well.
Hot water completes the list.
As you can see, all of these products are so safe you can, and do, eat them. In addition, you don't need to wear protective gloves or a mask - and warning labels are unnecessary. Environmentally, these products will not go on to pollute our waterways and oceans. These products are still poisonous in large quantities. Store them where toddlers cannot get them.