Nuts are produced and treated in many different countries. So, the quality of the product may be less while packing and producing.
As typical agricultural products, nuts contain a variety of contaminants and harmful substances. Nuts are subject to attack by molds, insects, birds and other vermin, which may leave harmful or intolerable residues or else damage the product material.
All nuts have different nutrition credentials and will offer various health benefits. There are many products which contains nuts for flavor or as toppings.
FSA Lab provides various tests on color, taste and appearance of nuts and nuts products.