Silica gel packets usually come in small pouches that contain silica gels for protection of all types of valuables from impending dangers of moisture, odor etc. You can find them in almost all types of packaged goods that need to remain fresh. Indeed, silica gel packets are used even in food items to prevent moisture. However, these are used in packed form either packed in cotton or tyvek pouches. You cannot use them as open samples. So are these silica gels harmful? The answer is yes to a certain extent.
Remember, every silica gel packet has do not consume or keep away from children written on it? This sums up their harmfulness. So, consumption of these materials directly/by mistake should be avoided. This especially holds true when they are consumed in large amounts. More so, if you have children in the house. This is because silica gel is said to absorb water in your body. In fact, they are known to absorb 40% of its weight in moisture and have the highest absorption capacity of any commercially used desiccant.
Sometimes, this may lead to accidents in serious proportions that involve surgery as it results in breathing problems. On a lesser scale, if you are lucky it may dissolve in your body and may lead to very small consequences. This variety of porous sand may first result in dry mouth and other related problems like dry eyes, irritated and dry feeling in your throat, aggravated by dry mucous membranes and nasal cavity and at times an upset stomach or stomach discomfort. However, all this would happen only if you consume them in huge quantities.
The next step in handling silica gel packets is using them in your personal space. Yes, you got it right, it is not just the people in the packaging industry use them. You too can use them for preserving and safe keeping of valuable articles at home. Tuck silica gel packets in your camera case, specs case, jewelry case or just anywhere and you can be assured they would be protected from moisture and other fungal attacks.
Now, the question is where would you find these silica gel packets? The answer is simple. Recycle the ones that come in your packaged goods. Alternatively, you can also get them from a hardware or online store. Use silica gel packets for maximal benefit but handle them with care.