Of all the choices, rice protein is probably the mildest tasting plant based protein powder.
The taste of vegan protein powder depends on the source. Some powders like rice protein powder have little flavor, while hemp powder tastes slightly nutty.
The taste of plant protein powder can vary greatly depending on the plant source and the quality of the product you purchase.
Rice protein powder has very little taste itself, but due to its texture can sometimes seem a little chalky.
The raw taste of beef protein powder tends to be more savory and saltier in flavor.
Hemp protein powder has a distinct nutty taste that is pleasing, but a texture that is a little gritty at times depending on the quality of your product.
The taste of egg protein powder varies depending on the brand and processing. Egg protein powder can have almost no taste or can be quite eggy in flavour.
Unflavoured soy protein powder generally has a nutty flavour with a smooth to medium grainy texture.
Raw whey protein powder has a slightly chalky taste with a hint of cheese and milk.
Unflavored pea protein powder does have a mellow bean like flavour, but this is reasonably easy to disguise by adding your own flavor.